2 files changed, 2 insertions, 2 deletions
diff --git a/pkgs/applications/science/logic/celf/default.nix b/pkgs/applications/science/logic/celf/default.nix
index 669cd46cd2e..708270f772f 100644
--- a/pkgs/applications/science/logic/celf/default.nix
+++ b/pkgs/applications/science/logic/celf/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Linear logic programming system";
-    homepage = http://github.com/clf/celf;
+    homepage = https://github.com/clf/celf;
     license = licenses.gpl3;
     maintainers = with maintainers; [ bcdarwin ];
     platforms = platforms.unix;
diff --git a/pkgs/applications/science/logic/mcrl2/default.nix b/pkgs/applications/science/logic/mcrl2/default.nix
index 6e8797fcc40..ec717002c2d 100644
--- a/pkgs/applications/science/logic/mcrl2/default.nix
+++ b/pkgs/applications/science/logic/mcrl2/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
       that can be used for modelling, validation and verification of
       concurrent systems and protocols
     '';
-    homepage = http://www.mcrl2.org/;
+    homepage = https://www.mcrl2.org/;
     license = licenses.boost;
     maintainers = with maintainers; [ moretea ];
     platforms = platforms.unix;