treewide: fix redirected urls

According to https://repology.org/repository/nix_unstable/problems, we have a
lot of packages that have http links that redirect to https as their homepage.
This commit updates all these packages to use the https links as their
homepage.

The following script was used to make these updates:

```

curl https://repology.org/api/v1/repository/nix_unstable/problems \
    | jq '.[] | .problem' -r \
    | rg 'Homepage link "(.+)" is a permanent redirect to "(.+)" and should be updated' --replace 's@$1@$2@' \
    | sort | uniq > script.sed

find -name '*.nix' | xargs -P4 -- sed -f script.sed -i
```

75 files changed, 86 insertions, 86 deletions

diff --git a/pkgs/applications/audio/sonic-visualiser/default.nix b/pkgs/applications/audio/sonic-visualiser/default.nix
index 501d097f29f..6164c1cfe93 100644
--- a/pkgs/applications/audio/sonic-visualiser/default.nix
+++ b/pkgs/applications/audio/sonic-visualiser/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "View and analyse contents of music audio files";
-    homepage = http://www.sonicvisualiser.org/;
+    homepage = https://www.sonicvisualiser.org/;
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.goibhniu maintainers.marcweber ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/audio/vcv-rack/default.nix b/pkgs/applications/audio/vcv-rack/default.nix
index 11daabbf810..21aa27fa5bc 100644
--- a/pkgs/applications/audio/vcv-rack/default.nix
+++ b/pkgs/applications/audio/vcv-rack/default.nix
@@ -93,7 +93,7 @@ with stdenv.lib; stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Open-source virtual modular synthesizer";
-    homepage = http://vcvrack.com/;
+    homepage = https://vcvrack.com/;
     # The source is BSD-3 licensed, some of the art is CC-BY-NC 4.0 or under a
     # no-derivatives clause
     license = with licenses; [ bsd3 cc-by-nc-40 unfreeRedistributable ];
diff --git a/pkgs/applications/audio/vkeybd/default.nix b/pkgs/applications/audio/vkeybd/default.nix
index 485edaa1ff2..3f77a657472 100644
--- a/pkgs/applications/audio/vkeybd/default.nix
+++ b/pkgs/applications/audio/vkeybd/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation  rec {
 
   meta = with stdenv.lib; {
     description = "Virtual MIDI keyboard";
-    homepage = http://www.alsa-project.org/~tiwai/alsa.html;
+    homepage = https://www.alsa-project.org/~tiwai/alsa.html;
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/applications/blockchains/wownero.nix b/pkgs/applications/blockchains/wownero.nix
index 8b25e098b2f..eb813a36125 100644
--- a/pkgs/applications/blockchains/wownero.nix
+++ b/pkgs/applications/blockchains/wownero.nix
@@ -39,7 +39,7 @@ stdenv.mkDerivation rec {
       signatures using different participants for the same tx outputs on
       opposing forks.
     '';
-    homepage    = http://wownero.org/;
+    homepage    = https://wownero.org/;
     license     = licenses.bsd3;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ fuwa ];
diff --git a/pkgs/applications/editors/emacs-modes/org-generated.nix b/pkgs/applications/editors/emacs-modes/org-generated.nix
index 8d70794a754..302f5adcfb1 100644
--- a/pkgs/applications/editors/emacs-modes/org-generated.nix
+++ b/pkgs/applications/editors/emacs-modes/org-generated.nix
@@ -6,7 +6,7 @@
         ename = "org";
         version = "20191203";
         src = fetchurl {
-          url = "http://orgmode.org/elpa/org-20191203.tar";
+          url = "https://orgmode.org/elpa/org-20191203.tar";
           sha256 = "1fcgiswjnqmfzx3xkmlqyyhc4a8ms07vdsv7nkizgxqdh9hwfm2q";
         };
         packageRequires = [];
@@ -21,7 +21,7 @@
         ename = "org-plus-contrib";
         version = "20191203";
         src = fetchurl {
-          url = "http://orgmode.org/elpa/org-plus-contrib-20191203.tar";
+          url = "https://orgmode.org/elpa/org-plus-contrib-20191203.tar";
           sha256 = "1kvw95492acb7gqn8gxbp1vg4fyw80w43yvflxnfxdf6jnnw2wah";
         };
         packageRequires = [];
diff --git a/pkgs/applications/editors/emacs-modes/org-mac-link/default.nix b/pkgs/applications/editors/emacs-modes/org-mac-link/default.nix
index 241ec3b42c9..4d8f40074bd 100644
--- a/pkgs/applications/editors/emacs-modes/org-mac-link/default.nix
+++ b/pkgs/applications/editors/emacs-modes/org-mac-link/default.nix
@@ -24,7 +24,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Insert org-mode links to items selected in various Mac apps";
-    homepage = http://orgmode.org/worg/org-contrib/org-mac-link.html;
+    homepage = https://orgmode.org/worg/org-contrib/org-mac-link.html;
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.all;
   };
diff --git a/pkgs/applications/graphics/rapid-photo-downloader/default.nix b/pkgs/applications/graphics/rapid-photo-downloader/default.nix
index 2e12e18a5a5..ed8ef35a7e5 100644
--- a/pkgs/applications/graphics/rapid-photo-downloader/default.nix
+++ b/pkgs/applications/graphics/rapid-photo-downloader/default.nix
@@ -80,7 +80,7 @@ mkDerivationWith python3Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "Photo and video importer for cameras, phones, and memory cards";
-    homepage = http://www.damonlynch.net/rapid/;
+    homepage = https://www.damonlynch.net/rapid/;
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ jfrankenau ];
diff --git a/pkgs/applications/graphics/shutter/default.nix b/pkgs/applications/graphics/shutter/default.nix
index 957692b4ba1..dd41ee4c3f8 100644
--- a/pkgs/applications/graphics/shutter/default.nix
+++ b/pkgs/applications/graphics/shutter/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Screenshot and annotation tool";
-    homepage = http://shutter-project.org/;
+    homepage = https://shutter-project.org/;
     license = licenses.gpl3Plus;
     platforms = platforms.all;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/applications/misc/loxodo/default.nix b/pkgs/applications/misc/loxodo/default.nix
index f84ac6d600a..846df292eb1 100644
--- a/pkgs/applications/misc/loxodo/default.nix
+++ b/pkgs/applications/misc/loxodo/default.nix
@@ -30,7 +30,7 @@ py.buildPythonApplication {
 
   meta = with stdenv.lib; {
     description = "A Password Safe V3 compatible password vault";
-    homepage = http://www.christoph-sommer.de/loxodo/;
+    homepage = https://www.christoph-sommer.de/loxodo/;
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/misc/slic3r/default.nix b/pkgs/applications/misc/slic3r/default.nix
index 8dbd0cd5776..1465b0ea052 100644
--- a/pkgs/applications/misc/slic3r/default.nix
+++ b/pkgs/applications/misc/slic3r/default.nix
@@ -82,7 +82,7 @@ stdenv.mkDerivation rec {
       instructions for your 3D printer. It cuts the model into horizontal
       slices (layers), generates toolpaths to fill them and calculates the
       amount of material to be extruded.'';
-    homepage = http://slic3r.org/;
+    homepage = https://slic3r.org/;
     license = licenses.agpl3;
     platforms = platforms.linux;
     maintainers = with maintainers; [ bjornfor the-kenny ];
diff --git a/pkgs/applications/networking/instant-messengers/teamspeak/client.nix b/pkgs/applications/networking/instant-messengers/teamspeak/client.nix
index a75d0c8633a..c2a9f4be90a 100644
--- a/pkgs/applications/networking/instant-messengers/teamspeak/client.nix
+++ b/pkgs/applications/networking/instant-messengers/teamspeak/client.nix
@@ -101,7 +101,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "The TeamSpeak voice communication tool";
-    homepage = http://teamspeak.com/;
+    homepage = https://teamspeak.com/;
     license = {
       fullName = "Teamspeak client license";
       url = http://sales.teamspeakusa.com/licensing.php;
diff --git a/pkgs/applications/networking/irc/wraith/default.nix b/pkgs/applications/networking/irc/wraith/default.nix
index 6d9acdb68e5..996ab72d6f5 100644
--- a/pkgs/applications/networking/irc/wraith/default.nix
+++ b/pkgs/applications/networking/irc/wraith/default.nix
@@ -40,7 +40,7 @@ mkDerivation rec {
       The binary will not run when moved onto non-NixOS systems; use patchelf
       to fix its runtime dependenices.
     '';
-    homepage = http://wraith.botpack.net/;
+    homepage = https://wraith.botpack.net/;
     license = licenses.gpl2Plus;
     maintainers = with maintainers; [ elitak ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/networking/sync/unison/default.nix b/pkgs/applications/networking/sync/unison/default.nix
index bc93b743f8b..cada3f93f55 100644
--- a/pkgs/applications/networking/sync/unison/default.nix
+++ b/pkgs/applications/networking/sync/unison/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation (rec {
   dontStrip = !ocaml.nativeCompilers;
 
   meta = {
-    homepage = http://www.cis.upenn.edu/~bcpierce/unison/;
+    homepage = https://www.cis.upenn.edu/~bcpierce/unison/;
     description = "Bidirectional file synchronizer";
     license = stdenv.lib.licenses.gpl3Plus;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/office/zim/default.nix b/pkgs/applications/office/zim/default.nix
index baf7741ed22..a9b0f526852 100644
--- a/pkgs/applications/office/zim/default.nix
+++ b/pkgs/applications/office/zim/default.nix
@@ -12,7 +12,7 @@ python3Packages.buildPythonApplication rec {
   version = "0.72.0";
 
   src = fetchurl {
-    url = "http://zim-wiki.org/downloads/${name}.tar.gz";
+    url = "https://zim-wiki.org/downloads/${name}.tar.gz";
     sha256 = "1n3gmg7g86s8iwcx0i7rvvfdfs1fzmc9awr9qzjd2rckw4bkxad1";
   };
 
diff --git a/pkgs/applications/science/biology/poretools/default.nix b/pkgs/applications/science/biology/poretools/default.nix
index 8a19ae135e8..4660a776ab2 100755
--- a/pkgs/applications/science/biology/poretools/default.nix
+++ b/pkgs/applications/science/biology/poretools/default.nix
@@ -16,7 +16,7 @@ pythonPackages.buildPythonPackage rec {
   meta = {
     description = "a toolkit for working with nanopore sequencing data from Oxford Nanopore";
     license = stdenv.lib.licenses.mit;
-    homepage = http://poretools.readthedocs.io/en/latest/;
+    homepage = https://poretools.readthedocs.io/en/latest/;
     maintainers = [stdenv.lib.maintainers.rybern];
   };
 }
diff --git a/pkgs/applications/science/robotics/apmplanner2/default.nix b/pkgs/applications/science/robotics/apmplanner2/default.nix
index fe5f8790f38..0bc58c50335 100644
--- a/pkgs/applications/science/robotics/apmplanner2/default.nix
+++ b/pkgs/applications/science/robotics/apmplanner2/default.nix
@@ -46,7 +46,7 @@ mkDerivation rec {
       A GUI ground control station for autonomous vehicles using the MAVLink protocol.
       Includes support for the APM and PX4 based controllers.
     '';
-    homepage = http://ardupilot.org/planner2/;
+    homepage = https://ardupilot.org/planner2/;
     license = lib.licenses.gpl3;
     maintainers = with lib.maintainers; [ wucke13 ];
   };
diff --git a/pkgs/applications/version-management/git-and-tools/subgit/default.nix b/pkgs/applications/version-management/git-and-tools/subgit/default.nix
index 3636ad11fb6..ac11e7469e5 100644
--- a/pkgs/applications/version-management/git-and-tools/subgit/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/subgit/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
   '';
 
   src = fetchurl {
-    url = "http://subgit.com/download/${name}.zip";
+    url = "https://subgit.com/download/${name}.zip";
     sha256 = "0dwd2kymmprci3b61ayr6axzlkc8zgbc40jqxvvyzschfxw9y0v5";
   };
 }
diff --git a/pkgs/applications/version-management/redmine/default.nix b/pkgs/applications/version-management/redmine/default.nix
index e25cde11af0..a133a9a6a2a 100644
--- a/pkgs/applications/version-management/redmine/default.nix
+++ b/pkgs/applications/version-management/redmine/default.nix
@@ -36,7 +36,7 @@ in
     '';
 
     meta = with stdenv.lib; {
-      homepage = http://www.redmine.org/;
+      homepage = https://www.redmine.org/;
       platforms = platforms.linux;
       maintainers = [ maintainers.aanderse ];
       license = licenses.gpl2;
diff --git a/pkgs/applications/version-management/smartgithg/default.nix b/pkgs/applications/version-management/smartgithg/default.nix
index 554dbae3882..df55f20783f 100644
--- a/pkgs/applications/version-management/smartgithg/default.nix
+++ b/pkgs/applications/version-management/smartgithg/default.nix
@@ -86,7 +86,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "GUI for Git, Mercurial, Subversion";
-    homepage = http://www.syntevo.com/smartgit/;
+    homepage = https://www.syntevo.com/smartgit/;
     license = licenses.unfree;
     platforms = platforms.linux;
     maintainers = with stdenv.lib.maintainers; [ jraygauthier ];
diff --git a/pkgs/applications/video/simplescreenrecorder/default.nix b/pkgs/applications/video/simplescreenrecorder/default.nix
index 6191fd0f18a..b06f0fcd962 100644
--- a/pkgs/applications/video/simplescreenrecorder/default.nix
+++ b/pkgs/applications/video/simplescreenrecorder/default.nix
@@ -31,7 +31,7 @@ mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A screen recorder for Linux";
-    homepage = http://www.maartenbaert.be/simplescreenrecorder;
+    homepage = https://www.maartenbaert.be/simplescreenrecorder;
     license = licenses.gpl3;
     platforms = [ "x86_64-linux" ];
     maintainers = [ maintainers.goibhniu ];
diff --git a/pkgs/data/fonts/ttf-envy-code-r/default.nix b/pkgs/data/fonts/ttf-envy-code-r/default.nix
index 024e1acd434..0f670f106fd 100644
--- a/pkgs/data/fonts/ttf-envy-code-r/default.nix
+++ b/pkgs/data/fonts/ttf-envy-code-r/default.nix
@@ -17,7 +17,7 @@ in fetchzip {
   sha256 = "0x0r07nax68cmz7490x2crzzgdg4j8fg63wppcmjqm0230bggq2z";
 
   meta = with lib; {
-    homepage = http://damieng.com/blog/tag/envy-code-r;
+    homepage = https://damieng.com/blog/tag/envy-code-r;
     description = "Free scalable coding font by DamienG";
     license = licenses.unfree;
     maintainers = [ maintainers.lyt ];
diff --git a/pkgs/data/fonts/ultimate-oldschool-pc-font-pack/default.nix b/pkgs/data/fonts/ultimate-oldschool-pc-font-pack/default.nix
index f9045794fe1..5b07adf822e 100644
--- a/pkgs/data/fonts/ultimate-oldschool-pc-font-pack/default.nix
+++ b/pkgs/data/fonts/ultimate-oldschool-pc-font-pack/default.nix
@@ -5,7 +5,7 @@ let
 in
 fetchzip {
   name = "ultimate-oldschool-pc-font-pack-${version}";
-  url = "http://int10h.org/oldschool-pc-fonts/download/ultimate_oldschool_pc_font_pack_v${version}.zip";
+  url = "https://int10h.org/oldschool-pc-fonts/download/ultimate_oldschool_pc_font_pack_v${version}.zip";
   sha256 = "0hid4dgqfy2w26734vcw2rxmpacd9vd1r2qpdr9ww1n3kgc92k9y";
 
   postFetch= ''
@@ -15,7 +15,7 @@ fetchzip {
 
   meta = with lib; {
     description = "The Ultimate Oldschool PC Font Pack (TTF Fonts)";
-    homepage = "http://int10h.org/oldschool-pc-fonts/";
+    homepage = "https://int10h.org/oldschool-pc-fonts/";
     license = licenses.cc-by-sa-40;
     maintainers = [ maintainers.endgame ];
   };
diff --git a/pkgs/desktops/xfce/panel-plugins/xfce4-dict-plugin.nix b/pkgs/desktops/xfce/panel-plugins/xfce4-dict-plugin.nix
index 0b31bac8d54..3abeb74a435 100644
--- a/pkgs/desktops/xfce/panel-plugins/xfce4-dict-plugin.nix
+++ b/pkgs/desktops/xfce/panel-plugins/xfce4-dict-plugin.nix
@@ -20,6 +20,6 @@ stdenv.mkDerivation rec {
     description = "Dictionary plugin for Xfce panel";
     platforms = platforms.linux;
     maintainers = [ maintainers.AndersonTorres ];
-    broken = true; # see http://goodies.xfce.org/projects/panel-plugins/xfce4-dict-plugin
+    broken = true; # see https://goodies.xfce.org/projects/panel-plugins/xfce4-dict-plugin
   };
 }
diff --git a/pkgs/development/compilers/souffle/default.nix b/pkgs/development/compilers/souffle/default.nix
index 35ee7de7a2d..00d1a2f7960 100644
--- a/pkgs/development/compilers/souffle/default.nix
+++ b/pkgs/development/compilers/souffle/default.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A translator of declarative Datalog programs into the C++ language";
-    homepage    = "http://souffle-lang.github.io/";
+    homepage    = "https://souffle-lang.github.io/";
     platforms   = platforms.unix;
     maintainers = with maintainers; [ thoughtpolice copumpkin wchresta ];
     license     = licenses.upl;
diff --git a/pkgs/development/interpreters/racket/default.nix b/pkgs/development/interpreters/racket/default.nix
index 3b3b91afd6f..f12d1f1090f 100644
--- a/pkgs/development/interpreters/racket/default.nix
+++ b/pkgs/development/interpreters/racket/default.nix
@@ -102,7 +102,7 @@ stdenv.mkDerivation rec {
       libraries support applications from web servers and databases to
       GUIs and charts.
     '';
-    homepage = http://racket-lang.org/;
+    homepage = https://racket-lang.org/;
     license = with licenses; [ asl20 /* or */ mit ];
     maintainers = with maintainers; [ kkallio henrytill vrthra ];
     platforms = [ "x86_64-darwin" "x86_64-linux" ];
diff --git a/pkgs/development/libraries/audio/lv2/default.nix b/pkgs/development/libraries/audio/lv2/default.nix
index ad450b53d12..0f86cd76e2a 100644
--- a/pkgs/development/libraries/audio/lv2/default.nix
+++ b/pkgs/development/libraries/audio/lv2/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.16.0";
 
   src = fetchurl {
-    url = "http://lv2plug.in/spec/${pname}-${version}.tar.bz2";
+    url = "https://lv2plug.in/spec/${pname}-${version}.tar.bz2";
     sha256 = "1ppippbpdpv13ibs06b0bixnazwfhiw0d0ja6hx42jnkgdyp5hyy";
   };
 
diff --git a/pkgs/development/libraries/box2d/default.nix b/pkgs/development/libraries/box2d/default.nix
index d4b4c33f35b..64b18f389ac 100644
--- a/pkgs/development/libraries/box2d/default.nix
+++ b/pkgs/development/libraries/box2d/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "2D physics engine";
-    homepage = http://box2d.org/;
+    homepage = https://box2d.org/;
     maintainers = [ maintainers.raskin ];
     platforms = platforms.linux;
     license = licenses.zlib;
diff --git a/pkgs/development/libraries/levmar/default.nix b/pkgs/development/libraries/levmar/default.nix
index b814f077f30..9a933b176d3 100644
--- a/pkgs/development/libraries/levmar/default.nix
+++ b/pkgs/development/libraries/levmar/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "levmar-2.6";
 
   src = fetchurl {
-    url = "http://www.ics.forth.gr/~lourakis/levmar/${name}.tgz";
+    url = "https://www.ics.forth.gr/~lourakis/levmar/${name}.tgz";
     sha256 = "1mxsjip9x782z6qa6k5781wjwpvj5aczrn782m9yspa7lhgfzx1v";
   };
 
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
 
   meta = { 
     description = "ANSI C implementations of Levenberg-Marquardt, usable also from C++";
-    homepage = http://www.ics.forth.gr/~lourakis/levmar/;
+    homepage = https://www.ics.forth.gr/~lourakis/levmar/;
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/development/libraries/libxl/default.nix b/pkgs/development/libraries/libxl/default.nix
index 23855f6cc7e..6f11d4c461f 100644
--- a/pkgs/development/libraries/libxl/default.nix
+++ b/pkgs/development/libraries/libxl/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "3.8.8";
 
   src = fetchurl {
-    url = "http://www.libxl.com/download/${pname}-lin-${version}.tar.gz";
+    url = "https://www.libxl.com/download/${pname}-lin-${version}.tar.gz";
     sha256 = "08jarfcl8l5mrmkx6bcifi3ghkaja9isz77zgggl84yl66js5pc3";
   };
 
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A library for parsing Excel files";
-    homepage    = "http://www.libxl.com/";
+    homepage    = "https://www.libxl.com/";
     license     = licenses.unfree;
     platforms   = platforms.linux;
     maintainers = with maintainers; [  ];
diff --git a/pkgs/development/libraries/rabbitmq-java-client/default.nix b/pkgs/development/libraries/rabbitmq-java-client/default.nix
index afb4e0daeb6..ff8db94288a 100644
--- a/pkgs/development/libraries/rabbitmq-java-client/default.nix
+++ b/pkgs/development/libraries/rabbitmq-java-client/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "RabbitMQ Java client library which allows Java code to interface to AMQP servers";
-    homepage = http://www.rabbitmq.com/java-client.html;
+    homepage = https://www.rabbitmq.com/java-client.html;
     license = with licenses; [ mpl11 gpl2 ];
     platforms = platforms.linux;
   };
diff --git a/pkgs/development/libraries/rlog/default.nix b/pkgs/development/libraries/rlog/default.nix
index f8268b5eb7c..f9188e1294b 100644
--- a/pkgs/development/libraries/rlog/default.nix
+++ b/pkgs/development/libraries/rlog/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation {
   };
 
   meta = {
-    homepage = http://www.arg0.net/rlog;
+    homepage = https://www.arg0.net/rlog;
     description = "A C++ logging library used in encfs";
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.lgpl3;
diff --git a/pkgs/development/libraries/safefile/default.nix b/pkgs/development/libraries/safefile/default.nix
index 5136bac2de0..ae5ec222c23 100644
--- a/pkgs/development/libraries/safefile/default.nix
+++ b/pkgs/development/libraries/safefile/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
     license = stdenv.lib.licenses.asl20 ;
     maintainers = [stdenv.lib.maintainers.raskin];
     platforms = stdenv.lib.platforms.linux;
-    homepage = http://research.cs.wisc.edu/mist/safefile/;
+    homepage = https://research.cs.wisc.edu/mist/safefile/;
     updateWalker = true;
   };
 }
diff --git a/pkgs/development/libraries/shhmsg/default.nix b/pkgs/development/libraries/shhmsg/default.nix
index 596ea1cfaf8..2790e181ac1 100644
--- a/pkgs/development/libraries/shhmsg/default.nix
+++ b/pkgs/development/libraries/shhmsg/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "shhmsg-1.4.2";
 
   src = fetchurl {
-    url = "http://shh.thathost.com/pub-unix/files/${name}.tar.gz";
+    url = "https://shh.thathost.com/pub-unix/files/${name}.tar.gz";
     sha256 = "0ax02fzqpaxr7d30l5xbndy1s5vgg1ag643c7zwiw2wj1czrxil8";
   };
 
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A library for displaying messages";
-    homepage = http://shh.thathost.com/pub-unix/;
+    homepage = https://shh.thathost.com/pub-unix/;
     license = licenses.artistic1;
     platforms = platforms.linux;
   };
diff --git a/pkgs/development/libraries/shhopt/default.nix b/pkgs/development/libraries/shhopt/default.nix
index 985ee59348b..52ba959b615 100644
--- a/pkgs/development/libraries/shhopt/default.nix
+++ b/pkgs/development/libraries/shhopt/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "shhopt-1.1.7";
 
   src = fetchurl {
-    url = "http://shh.thathost.com/pub-unix/files/${name}.tar.gz";
+    url = "https://shh.thathost.com/pub-unix/files/${name}.tar.gz";
     sha256 = "0yd6bl6qw675sxa81nxw6plhpjf9d2ywlm8a5z66zyjf28sl7sds";
   };
 
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A library for parsing command line options";
-    homepage = http://shh.thathost.com/pub-unix/;
+    homepage = https://shh.thathost.com/pub-unix/;
     license = licenses.artistic1;
     platforms = platforms.linux;
   };
diff --git a/pkgs/development/libraries/szip/default.nix b/pkgs/development/libraries/szip/default.nix
index 6fd1d1ca941..f6d4df2eab3 100644
--- a/pkgs/development/libraries/szip/default.nix
+++ b/pkgs/development/libraries/szip/default.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Compression library that can be used with the hdf5 library";
-    homepage = http://www.hdfgroup.org/doc_resource/SZIP/;
+    homepage = https://www.hdfgroup.org/doc_resource/SZIP/;
     license = stdenv.lib.licenses.unfree;
   };
 }
diff --git a/pkgs/development/libraries/tokyo-tyrant/default.nix b/pkgs/development/libraries/tokyo-tyrant/default.nix
index 7bf08a3560a..358da431e1c 100644
--- a/pkgs/development/libraries/tokyo-tyrant/default.nix
+++ b/pkgs/development/libraries/tokyo-tyrant/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "tokyotyrant-1.1.41";
 
   src = fetchurl {
-    url = "http://fallabs.com/tokyotyrant/${name}.tar.gz";
+    url = "https://fallabs.com/tokyotyrant/${name}.tar.gz";
     sha256 = "13xqcinhydqmh7231qlir6pymacjwcf98drybkhd9597kzxp1bs2";
   };
 
@@ -31,7 +31,7 @@ stdenv.mkDerivation rec {
          licensed under the GNU Lesser General Public License.
        '';
 
-    homepage = http://fallabs.com/tokyotyrant/;
+    homepage = https://fallabs.com/tokyotyrant/;
 
     license = stdenv.lib.licenses.lgpl21Plus;
 
diff --git a/pkgs/development/libraries/wcslib/default.nix b/pkgs/development/libraries/wcslib/default.nix
index b0c8c1edd66..aa4ceb461f1 100644
--- a/pkgs/development/libraries/wcslib/default.nix
+++ b/pkgs/development/libraries/wcslib/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "World Coordinate System Library for Astronomy";
-    homepage = http://www.atnf.csiro.au/people/mcalabre/WCS/;
+    homepage = https://www.atnf.csiro.au/people/mcalabre/WCS/;
 
     longDescription = ''Library for world coordinate systems for
     spherical geometries and their conversion to image coordinate
diff --git a/pkgs/development/libraries/zimlib/default.nix b/pkgs/development/libraries/zimlib/default.nix
index 1b74b8c5388..34a03e56a10 100644
--- a/pkgs/development/libraries/zimlib/default.nix
+++ b/pkgs/development/libraries/zimlib/default.nix
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Library for reading and writing ZIM files";
-    homepage =  http://www.openzim.org/wiki/Zimlib;
+    homepage =  https://www.openzim.org/wiki/Zimlib;
     license = licenses.gpl2;
     maintainers = with maintainers; [ robbinch ];
     platforms = platforms.linux;
diff --git a/pkgs/development/lua-modules/generated-packages.nix b/pkgs/development/lua-modules/generated-packages.nix
index 4cff22a8d41..668ad3a0bbd 100644
--- a/pkgs/development/lua-modules/generated-packages.nix
+++ b/pkgs/development/lua-modules/generated-packages.nix
@@ -1173,7 +1173,7 @@ luautf8 = buildLuarocksPackage {
   propagatedBuildInputs = [ lua ];
 
   meta = with stdenv.lib; {
-    homepage = "http://github.com/starwing/luautf8";
+    homepage = "https://github.com/starwing/luautf8";
     description = "A UTF-8 support module for Lua";
     maintainers = with maintainers; [ pstn ];
     license = {
@@ -1212,7 +1212,7 @@ lua-yajl = buildLuarocksPackage {
   propagatedBuildInputs = [ lua ];
 
   meta = with stdenv.lib; {
-    homepage = "http://github.com/brimworks/lua-yajl";
+    homepage = "https://github.com/brimworks/lua-yajl";
     description = "Integrate the yajl JSON library with Lua.";
     maintainers = with maintainers; [ pstn ];
     license = {
diff --git a/pkgs/development/python-modules/cjson/default.nix b/pkgs/development/python-modules/cjson/default.nix
index 2042a2d629b..c9b5be5e604 100644
--- a/pkgs/development/python-modules/cjson/default.nix
+++ b/pkgs/development/python-modules/cjson/default.nix
@@ -12,7 +12,7 @@ buildPythonPackage rec {
 
   meta = with stdenv.lib; {
     description = "A very fast JSON encoder/decoder for Python";
-    homepage = http://ag-projects.com/;
+    homepage = https://ag-projects.com/;
     license = licenses.lgpl2;
   };
 }
diff --git a/pkgs/development/python-modules/eventlib/default.nix b/pkgs/development/python-modules/eventlib/default.nix
index 837ffa0d86d..4f684612f18 100644
--- a/pkgs/development/python-modules/eventlib/default.nix
+++ b/pkgs/development/python-modules/eventlib/default.nix
@@ -23,7 +23,7 @@ buildPythonPackage rec {
 
   meta = with stdenv.lib; {
     description = "Eventlib bindings for python";
-    homepage    = "http://ag-projects.com/";
+    homepage    = "https://ag-projects.com/";
     license     = licenses.lgpl2;
   };
 
diff --git a/pkgs/development/python-modules/pymatgen/default.nix b/pkgs/development/python-modules/pymatgen/default.nix
index ecc35d35736..4f99d0021e0 100644
--- a/pkgs/development/python-modules/pymatgen/default.nix
+++ b/pkgs/development/python-modules/pymatgen/default.nix
@@ -17,7 +17,7 @@ buildPythonPackage rec {
 
   meta = with stdenv.lib; {
     description = "A robust materials analysis code that defines core object representations for structures and molecules";
-    homepage = http://pymatgen.org/;
+    homepage = https://pymatgen.org/;
     license = licenses.mit;
     maintainers = with maintainers; [ psyanticy ];
   };
diff --git a/pkgs/development/python-modules/pysqlite/default.nix b/pkgs/development/python-modules/pysqlite/default.nix
index c1118aeeecd..b13cd1781d2 100644
--- a/pkgs/development/python-modules/pysqlite/default.nix
+++ b/pkgs/development/python-modules/pysqlite/default.nix
@@ -30,7 +30,7 @@ buildPythonPackage rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://pysqlite.org/;
+    homepage = https://pysqlite.org/;
     description = "Python bindings for the SQLite embedded relational database engine";
     longDescription = ''
       pysqlite is a DB-API 2.0-compliant database interface for SQLite.
diff --git a/pkgs/development/python-modules/sipsimple/default.nix b/pkgs/development/python-modules/sipsimple/default.nix
index 7839a77f9f5..63425d2b8bd 100644
--- a/pkgs/development/python-modules/sipsimple/default.nix
+++ b/pkgs/development/python-modules/sipsimple/default.nix
@@ -35,7 +35,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "SIP SIMPLE implementation for Python";
-    homepage = http://sipsimpleclient.org/;
+    homepage = https://sipsimpleclient.org/;
     license = licenses.gpl3;
     maintainers = with maintainers; [ pSub ];
   };
diff --git a/pkgs/development/python-modules/stringtemplate/default.nix b/pkgs/development/python-modules/stringtemplate/default.nix
index 3d2b2337be4..7326f7d48e1 100644
--- a/pkgs/development/python-modules/stringtemplate/default.nix
+++ b/pkgs/development/python-modules/stringtemplate/default.nix
@@ -5,7 +5,7 @@ buildPythonPackage rec {
   version = "3.2b1";
 
   src = fetchurl {
-    url = "http://www.stringtemplate.org/download/${pname}-${version}.tar.gz";
+    url = "https://www.stringtemplate.org/download/${pname}-${version}.tar.gz";
     sha256 = "0lbib0l8c1q7i1j610rwcdagymr1idahrql4dkgnm5rzyg2vk3ml";
   };
 
@@ -17,7 +17,7 @@ buildPythonPackage rec {
   doCheck = false;
 
   meta = {
-    homepage = http://www.stringtemplate.org/;
+    homepage = https://www.stringtemplate.org/;
     description = "Text Templating Library";
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/development/python-modules/textacy/default.nix b/pkgs/development/python-modules/textacy/default.nix
index 454cff5e4a8..9d44ce98898 100644
--- a/pkgs/development/python-modules/textacy/default.nix
+++ b/pkgs/development/python-modules/textacy/default.nix
@@ -52,7 +52,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "Higher-level text processing, built on spaCy";
-    homepage = "http://textacy.readthedocs.io/";
+    homepage = "https://textacy.readthedocs.io/";
     license = licenses.asl20;
     maintainers = with maintainers; [ rvl ];
   };
diff --git a/pkgs/development/python-modules/umap-learn/default.nix b/pkgs/development/python-modules/umap-learn/default.nix
index a97f69652e8..465c02beb4f 100644
--- a/pkgs/development/python-modules/umap-learn/default.nix
+++ b/pkgs/development/python-modules/umap-learn/default.nix
@@ -42,7 +42,7 @@ def test_umap_transform_on_iris()"
 
   meta = with lib; {
     description = "Uniform Manifold Approximation and Projection";
-    homepage = http://github.com/lmcinnes/umap;
+    homepage = https://github.com/lmcinnes/umap;
     license = licenses.bsd3;
     maintainers = [ maintainers.costrouc ];
   };
diff --git a/pkgs/development/python-modules/uvloop/default.nix b/pkgs/development/python-modules/uvloop/default.nix
index b1fbf26e43b..90c8a4901c5 100644
--- a/pkgs/development/python-modules/uvloop/default.nix
+++ b/pkgs/development/python-modules/uvloop/default.nix
@@ -38,7 +38,7 @@ buildPythonPackage rec {
 
   meta = with lib; {
     description = "Fast implementation of asyncio event loop on top of libuv";
-    homepage = http://github.com/MagicStack/uvloop;
+    homepage = https://github.com/MagicStack/uvloop;
     license = licenses.mit;
     maintainers = [ maintainers.costrouc ];
   };
diff --git a/pkgs/development/python-modules/venusian/default.nix b/pkgs/development/python-modules/venusian/default.nix
index fb81a79f10e..7a67fdf727b 100644
--- a/pkgs/development/python-modules/venusian/default.nix
+++ b/pkgs/development/python-modules/venusian/default.nix
@@ -22,7 +22,7 @@ buildPythonPackage rec {
 
   meta = with stdenv.lib; {
     description = "A library for deferring decorator actions";
-    homepage = http://pylonsproject.org/;
+    homepage = https://pylonsproject.org/;
     license = licenses.bsd0;
     maintainers = with maintainers; [ domenkozar ];
   };
diff --git a/pkgs/development/python-modules/web/default.nix b/pkgs/development/python-modules/web/default.nix
index c6a25c7d1b7..ea1ffc7826f 100644
--- a/pkgs/development/python-modules/web/default.nix
+++ b/pkgs/development/python-modules/web/default.nix
@@ -20,7 +20,7 @@ buildPythonPackage rec {
       Think about the ideal way to write a web app.
       Write the code to make it happen.
     '';
-    homepage = "http://webpy.org/";
+    homepage = "https://webpy.org/";
     license = licenses.publicDomain;
     maintainers = with maintainers; [ layus ];
   };
diff --git a/pkgs/development/python-modules/xstatic-jquery-ui/default.nix b/pkgs/development/python-modules/xstatic-jquery-ui/default.nix
index 3424c8fcf6f..c47dfbc05d8 100644
--- a/pkgs/development/python-modules/xstatic-jquery-ui/default.nix
+++ b/pkgs/development/python-modules/xstatic-jquery-ui/default.nix
@@ -19,7 +19,7 @@ buildPythonPackage rec {
   propagatedBuildInputs = [ xstatic-jquery ];
 
   meta = with lib;{
-    homepage = http://jqueryui.com/;
+    homepage = https://jqueryui.com/;
     description = "jquery-ui packaged static files for python";
     license = licenses.mit;
     maintainers = with maintainers; [ makefu ];
diff --git a/pkgs/development/tools/database/sqlitebrowser/default.nix b/pkgs/development/tools/database/sqlitebrowser/default.nix
index 0ec4b1510e9..3a4425d436a 100644
--- a/pkgs/development/tools/database/sqlitebrowser/default.nix
+++ b/pkgs/development/tools/database/sqlitebrowser/default.nix
@@ -22,7 +22,7 @@ mkDerivation rec {
 
   meta = with lib; {
     description = "DB Browser for SQLite";
-    homepage = http://sqlitebrowser.org/;
+    homepage = https://sqlitebrowser.org/;
     license = licenses.gpl3;
     maintainers = with maintainers; [  ];
     platforms = platforms.unix;
diff --git a/pkgs/development/tools/devtodo/default.nix b/pkgs/development/tools/devtodo/default.nix
index b3134b0d0ad..4396f295340 100644
--- a/pkgs/development/tools/devtodo/default.nix
+++ b/pkgs/development/tools/devtodo/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://swapoff.org/devtodo1.html;
+    homepage = https://swapoff.org/devtodo1.html;
     description = "A hierarchical command-line task manager";
     license = licenses.gpl2;
     maintainers = [ maintainers.woffs ];
diff --git a/pkgs/development/tools/misc/saleae-logic/default.nix b/pkgs/development/tools/misc/saleae-logic/default.nix
index 0519e4d05e0..ffb537abfba 100644
--- a/pkgs/development/tools/misc/saleae-logic/default.nix
+++ b/pkgs/development/tools/misc/saleae-logic/default.nix
@@ -89,7 +89,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Software for Saleae logic analyzers";
-    homepage = http://www.saleae.com/;
+    homepage = https://www.saleae.com/;
     license = licenses.unfree;
     platforms = platforms.linux;
     maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/development/tools/misc/watson-ruby/default.nix b/pkgs/development/tools/misc/watson-ruby/default.nix
index 64e04455abe..4d73e106b2f 100644
--- a/pkgs/development/tools/misc/watson-ruby/default.nix
+++ b/pkgs/development/tools/misc/watson-ruby/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "An inline issue manager";
-    homepage    = http://goosecode.com/watson/;
+    homepage    = https://goosecode.com/watson/;
     license     = with licenses; mit;
     maintainers = with maintainers; [ robertodr nicknovitski ];
     platforms   = platforms.unix;
diff --git a/pkgs/games/snake4/default.nix b/pkgs/games/snake4/default.nix
index f37e15a22df..b3a74d0f4fb 100644
--- a/pkgs/games/snake4/default.nix
+++ b/pkgs/games/snake4/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "snake4-1.0.14";
 
   src = fetchurl {
-    url = "http://shh.thathost.com/pub-unix/files/${name}.tar.gz";
+    url = "https://shh.thathost.com/pub-unix/files/${name}.tar.gz";
     sha256 = "14cng9l857np42zixp440mbc8y5675frb6lhsds53j1cws9cncw9";
   };
 
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A game starring a fruit-eating snake";
-    homepage = http://shh.thathost.com/pub-unix/html/snake4.html;
+    homepage = https://shh.thathost.com/pub-unix/html/snake4.html;
     license = licenses.artistic1;
     platforms = platforms.linux;
   };
diff --git a/pkgs/games/spring/springlobby.nix b/pkgs/games/spring/springlobby.nix
index b7c9b691c04..dbcec10fdc6 100644
--- a/pkgs/games/spring/springlobby.nix
+++ b/pkgs/games/spring/springlobby.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://springlobby.info/;
+    homepage = https://springlobby.info/;
     repositories.git = git://github.com/springlobby/springlobby.git;
     description = "Cross-platform lobby client for the Spring RTS project";
     license = licenses.gpl2;
diff --git a/pkgs/games/stepmania/default.nix b/pkgs/games/stepmania/default.nix
index b29d22dfe73..71524c244ee 100644
--- a/pkgs/games/stepmania/default.nix
+++ b/pkgs/games/stepmania/default.nix
@@ -35,7 +35,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with lib; {
-    homepage = http://www.stepmania.com/;
+    homepage = https://www.stepmania.com/;
     description = "Free dance and rhythm game for Windows, Mac, and Linux";
     platforms = platforms.linux;
     license = licenses.mit; # expat version
diff --git a/pkgs/games/tdm/default.nix b/pkgs/games/tdm/default.nix
index 949f5a3e2ab..294d4703bb0 100644
--- a/pkgs/games/tdm/default.nix
+++ b/pkgs/games/tdm/default.nix
@@ -20,7 +20,7 @@ let
 in stdenv.mkDerivation {
   name = "${pname}-${version}";
   src = fetchurl {
-    url = "http://www.thedarkmod.com/sources/thedarkmod.${version}.src.7z";
+    url = "https://www.thedarkmod.com/sources/thedarkmod.${version}.src.7z";
     sha256 = "17wdpip8zvm2njz0xrf7xcxl73hnsc6i83zj18kn8rnjkpy50dd6";
   };
   nativeBuildInputs = [
diff --git a/pkgs/games/zandronum/default.nix b/pkgs/games/zandronum/default.nix
index 754c4814945..3f1ebb69618 100644
--- a/pkgs/games/zandronum/default.nix
+++ b/pkgs/games/zandronum/default.nix
@@ -75,7 +75,7 @@ in stdenv.mkDerivation rec {
   };
 
   meta = with stdenv.lib; {
-    homepage = http://zandronum.com/;
+    homepage = https://zandronum.com/;
     description = "Multiplayer oriented port, based off Skulltag, for Doom and Doom II by id Software";
     maintainers = with maintainers; [ lassulus MP2E ];
     license = licenses.unfreeRedistributable;
diff --git a/pkgs/misc/drivers/sundtek/default.nix b/pkgs/misc/drivers/sundtek/default.nix
index be199936426..5b1641a098d 100644
--- a/pkgs/misc/drivers/sundtek/default.nix
+++ b/pkgs/misc/drivers/sundtek/default.nix
@@ -46,6 +46,6 @@ in
       maintainers = [ maintainers.simonvandel ];
       platforms = platforms.unix;
       license = licenses.unfree;
-      homepage = http://support.sundtek.com/index.php/topic,1573.0.html;
+      homepage = https://support.sundtek.com/index.php/topic,1573.0.html;
     };
   }
diff --git a/pkgs/os-specific/linux/trace-cmd/default.nix b/pkgs/os-specific/linux/trace-cmd/default.nix
index 47adcf938c5..5ec5fbb7c22 100644
--- a/pkgs/os-specific/linux/trace-cmd/default.nix
+++ b/pkgs/os-specific/linux/trace-cmd/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "User-space tools for the Linux kernel ftrace subsystem";
-    homepage    = http://kernelshark.org/;
+    homepage    = https://kernelshark.org/;
     license     = licenses.gpl2;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ thoughtpolice basvandijk ];
diff --git a/pkgs/servers/amqp/rabbitmq-server/default.nix b/pkgs/servers/amqp/rabbitmq-server/default.nix
index 868fd3a6d56..8fd207e9175 100644
--- a/pkgs/servers/amqp/rabbitmq-server/default.nix
+++ b/pkgs/servers/amqp/rabbitmq-server/default.nix
@@ -59,7 +59,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://www.rabbitmq.com/;
+    homepage = https://www.rabbitmq.com/;
     description = "An implementation of the AMQP messaging protocol";
     license = stdenv.lib.licenses.mpl11;
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/servers/http/spawn-fcgi/default.nix b/pkgs/servers/http/spawn-fcgi/default.nix
index d118e8af66d..c24b0b4c1a9 100644
--- a/pkgs/servers/http/spawn-fcgi/default.nix
+++ b/pkgs/servers/http/spawn-fcgi/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage    = "http://redmine.lighttpd.net/projects/spawn-fcgi";
+    homepage    = "https://redmine.lighttpd.net/projects/spawn-fcgi";
     description = "Provides an interface to external programs that support the FastCGI interface";
     license     = licenses.bsd3;
     maintainers = with maintainers; [ cstrahan ];
diff --git a/pkgs/servers/search/groonga/default.nix b/pkgs/servers/search/groonga/default.nix
index cfadeac5f07..26fd392943c 100644
--- a/pkgs/servers/search/groonga/default.nix
+++ b/pkgs/servers/search/groonga/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
   installCheckPhase = "$out/bin/groonga --version";
 
   meta = with stdenv.lib; {
-    homepage    = http://groonga.org/;
+    homepage    = https://groonga.org/;
     description = "An open-source fulltext search engine and column store";
     license     = licenses.lgpl21;
     maintainers = [ maintainers.ericsagnes ];
diff --git a/pkgs/shells/tcsh/default.nix b/pkgs/shells/tcsh/default.nix
index f13919e52e7..110beb82804 100644
--- a/pkgs/shells/tcsh/default.nix
+++ b/pkgs/shells/tcsh/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
       - history mechanism
       - job control
     '';
-    homepage = http://www.tcsh.org/;
+    homepage = https://www.tcsh.org/;
     license = licenses.bsd2;
     maintainers = with maintainers; [ AndersonTorres ];
     platforms = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/shells/xonsh/default.nix b/pkgs/shells/xonsh/default.nix
index 58dd629929f..0e2490ff434 100644
--- a/pkgs/shells/xonsh/default.nix
+++ b/pkgs/shells/xonsh/default.nix
@@ -37,7 +37,7 @@ python3Packages.buildPythonApplication rec {
 
   meta = with stdenv.lib; {
     description = "A Python-ish, BASHwards-compatible shell";
-    homepage = http://xon.sh/;
+    homepage = https://xon.sh/;
     license = licenses.bsd3;
     maintainers = with maintainers; [ spwhitt vrthra ];
     platforms = platforms.all;
diff --git a/pkgs/tools/archivers/unrar/default.nix b/pkgs/tools/archivers/unrar/default.nix
index 0fe8f2f5866..cf05e326aff 100644
--- a/pkgs/tools/archivers/unrar/default.nix
+++ b/pkgs/tools/archivers/unrar/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Utility for RAR archives";
-    homepage = http://www.rarlab.com/;
+    homepage = https://www.rarlab.com/;
     license = licenses.unfreeRedistributable;
     maintainers = [ maintainers.ehmry ];
     platforms = platforms.all;
diff --git a/pkgs/tools/backup/rsnapshot/default.nix b/pkgs/tools/backup/rsnapshot/default.nix
index 9f6204db2d8..eebdcf7ba91 100644
--- a/pkgs/tools/backup/rsnapshot/default.nix
+++ b/pkgs/tools/backup/rsnapshot/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "rsnapshot-1.4.3";
 
   src = fetchurl {
-    url = "http://rsnapshot.org/downloads/${name}.tar.gz";
+    url = "https://rsnapshot.org/downloads/${name}.tar.gz";
     sha256 = "1lavqmmsf53pim0nvming7fkng6p0nk2a51k2c2jdq0l7snpl31b";
   };
 
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A filesystem snapshot utility for making backups of local and remote systems";
-    homepage = http://rsnapshot.org/;
+    homepage = https://rsnapshot.org/;
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/tools/filesystems/yandex-disk/default.nix b/pkgs/tools/filesystems/yandex-disk/default.nix
index 041d9a4e3f8..b97480d655b 100644
--- a/pkgs/tools/filesystems/yandex-disk/default.nix
+++ b/pkgs/tools/filesystems/yandex-disk/default.nix
@@ -46,7 +46,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://help.yandex.com/disk/cli-clients.xml;
+    homepage = https://help.yandex.com/disk/cli-clients.xml;
     description = "A free cloud file storage service";
     maintainers = with stdenv.lib.maintainers; [ smironov jagajaga ];
     platforms = ["i686-linux" "x86_64-linux"];
diff --git a/pkgs/tools/misc/gnuvd/default.nix b/pkgs/tools/misc/gnuvd/default.nix
index 9369c31fdeb..4da5ec2e5d5 100644
--- a/pkgs/tools/misc/gnuvd/default.nix
+++ b/pkgs/tools/misc/gnuvd/default.nix
@@ -10,7 +10,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "Command-line dutch dictionary application";
-    homepage = http://www.djcbsoftware.nl/code/gnuvd/;
+    homepage = https://www.djcbsoftware.nl/code/gnuvd/;
     license = licenses.gpl2;
     platforms = platforms.unix;
   };
diff --git a/pkgs/tools/misc/ipxe/default.nix b/pkgs/tools/misc/ipxe/default.nix
index 219c03f263c..010a5b0aae0 100644
--- a/pkgs/tools/misc/ipxe/default.nix
+++ b/pkgs/tools/misc/ipxe/default.nix
@@ -77,7 +77,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib;
     { description = "Network boot firmware";
-      homepage = http://ipxe.org/;
+      homepage = https://ipxe.org/;
       license = licenses.gpl2;
       maintainers = with maintainers; [ ehmry ];
       platforms = [ "x86_64-linux" "i686-linux" ];
diff --git a/pkgs/tools/misc/x11idle/default.nix b/pkgs/tools/misc/x11idle/default.nix
index f4a397ed9dd..270b39f8110 100644
--- a/pkgs/tools/misc/x11idle/default.nix
+++ b/pkgs/tools/misc/x11idle/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation {
     longDescription = ''
       Idle time passes when the user does not act, i.e. when the user doesn't move the mouse or use the keyboard.
     '';
-    homepage = http://orgmode.org/;
+    homepage = https://orgmode.org/;
     license = licenses.gpl3;
     platforms = platforms.linux;
     maintainers = [ maintainers.swflint ];
diff --git a/pkgs/tools/networking/stunnel/default.nix b/pkgs/tools/networking/stunnel/default.nix
index b9278dd7c0d..eaa05bfdbad 100644
--- a/pkgs/tools/networking/stunnel/default.nix
+++ b/pkgs/tools/networking/stunnel/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Universal tls/ssl wrapper";
-    homepage    = "http://www.stunnel.org/";
+    homepage    = "https://www.stunnel.org/";
     license     = stdenv.lib.licenses.gpl2Plus;
     platforms   = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.thoughtpolice ];
diff --git a/pkgs/tools/networking/uwimap/default.nix b/pkgs/tools/networking/uwimap/default.nix
index b687f1db017..4a8dab9366f 100644
--- a/pkgs/tools/networking/uwimap/default.nix
+++ b/pkgs/tools/networking/uwimap/default.nix
@@ -43,7 +43,7 @@ stdenv.mkDerivation ({
   '';
 
   meta = {
-    homepage = http://www.washington.edu/imap/;
+    homepage = https://www.washington.edu/imap/;
     description = "UW IMAP toolkit - IMAP-supporting software developed by the UW";
     license = stdenv.lib.licenses.asl20;
     platforms = with stdenv.lib.platforms; linux;