3 files changed, 3 insertions, 3 deletions
diff --git a/pkgs/development/libraries/gmp/4.3.2.nix b/pkgs/development/libraries/gmp/4.3.2.nix
index 1cb7fd42ccec0..36067cc0786df 100644
--- a/pkgs/development/libraries/gmp/4.3.2.nix
+++ b/pkgs/development/libraries/gmp/4.3.2.nix
@@ -60,7 +60,7 @@ let self = stdenv.mkDerivation rec {
          asymptotically faster algorithms.
       '';
 
-    homepage = http://gmplib.org/;
+    homepage = https://gmplib.org/;
     license = stdenv.lib.licenses.lgpl3Plus;
 
     maintainers = [ ];
diff --git a/pkgs/development/libraries/gmp/5.1.x.nix b/pkgs/development/libraries/gmp/5.1.x.nix
index 9a69932d9bd41..b39b56ec116f5 100644
--- a/pkgs/development/libraries/gmp/5.1.x.nix
+++ b/pkgs/development/libraries/gmp/5.1.x.nix
@@ -51,7 +51,7 @@ let self = stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://gmplib.org/;
+    homepage = https://gmplib.org/;
     description = "GNU multiple precision arithmetic library";
     license = licenses.gpl3Plus;
 
diff --git a/pkgs/development/libraries/gmp/6.x.nix b/pkgs/development/libraries/gmp/6.x.nix
index 34119a3f15303..e3bacc86d58ea 100644
--- a/pkgs/development/libraries/gmp/6.x.nix
+++ b/pkgs/development/libraries/gmp/6.x.nix
@@ -50,7 +50,7 @@ let self = stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://gmplib.org/;
+    homepage = https://gmplib.org/;
     description = "GNU multiple precision arithmetic library";
     license = licenses.gpl3Plus;