diff --git a/pkgs/development/tools/analysis/spin/default.nix b/pkgs/development/tools/analysis/spin/default.nix
index a15421eee27..5f0c7bffe94 100644
--- a/pkgs/development/tools/analysis/spin/default.nix
+++ b/pkgs/development/tools/analysis/spin/default.nix
@@ -38,7 +38,7 @@ in stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Formal verification tool for distributed software systems";
-    homepage = "http://spinroot.com/";
+    homepage = "https://spinroot.com/";
     license = licenses.free;
     platforms = platforms.linux ++ platforms.darwin;
     maintainers = with maintainers; [ pSub ];