4 files changed, 4 insertions, 4 deletions
diff --git a/pkgs/tools/graphics/asymptote/default.upstream b/pkgs/tools/graphics/asymptote/default.upstream
index 3739390fd1d..e86d81ba443 100644
--- a/pkgs/tools/graphics/asymptote/default.upstream
+++ b/pkgs/tools/graphics/asymptote/default.upstream
@@ -1,4 +1,4 @@
-url http://sourceforge.net/projects/asymptote/files/
+url https://sourceforge.net/projects/asymptote/files/
 SF_version_dir
 version_link 'src[.]tgz/download$'
 SF_redirect
diff --git a/pkgs/tools/graphics/dmtx-utils/default.upstream b/pkgs/tools/graphics/dmtx-utils/default.upstream
index 8768681642e..2bb7fe31bf7 100644
--- a/pkgs/tools/graphics/dmtx-utils/default.upstream
+++ b/pkgs/tools/graphics/dmtx-utils/default.upstream
@@ -1,4 +1,4 @@
-url http://sourceforge.net/projects/libdmtx/files/libdmtx/
+url https://sourceforge.net/projects/libdmtx/files/libdmtx/
 SF_version_dir
 version_link 'dmtx-utils-.*[.]tar[.][a-z0-9]+/download$'
 SF_redirect
diff --git a/pkgs/tools/graphics/scanbd/default.nix b/pkgs/tools/graphics/scanbd/default.nix
index 402628f0fc8..5dbbd20cd82 100644
--- a/pkgs/tools/graphics/scanbd/default.nix
+++ b/pkgs/tools/graphics/scanbd/default.nix
@@ -49,7 +49,7 @@ stdenv.mkDerivation rec {
       scanbuttond project. 
     '';
     homepage = http://scanbd.sourceforge.net/;
-    downloadPage = http://sourceforge.net/projects/scanbd/;
+    downloadPage = https://sourceforge.net/projects/scanbd/;
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
   };
diff --git a/pkgs/tools/text/poedit/default.nix b/pkgs/tools/text/poedit/default.nix
index 5ed59ff12c3..53d8cf8a8a2 100644
--- a/pkgs/tools/text/poedit/default.nix
+++ b/pkgs/tools/text/poedit/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "poedit-1.5.7";
 
   src = fetchurl {
-    url = "http://prdownloads.sourceforge.net/poedit/${name}.tar.gz";
+    url = "mirror://sourceforge/poedit/${name}.tar.gz";
     sha256 = "0y0gbkb1jvp61qhh8sh7ar8849mwirizc42pk57zpxy84an5qlr4";
   };