diff --git a/pkgs/by-name/co/collapseos-cvm/package.nix b/pkgs/by-name/co/collapseos-cvm/package.nix
index 48b519ff1e15..38b3d03a6b00 100644
--- a/pkgs/by-name/co/collapseos-cvm/package.nix
+++ b/pkgs/by-name/co/collapseos-cvm/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   pname = "collapseos-cvm";
   version = "20220316";
   src = fetchurl {
-    url = "http://collapseos.org/files/collapseos-${finalAttrs.version}.tar.gz";
+    url = "https://collapseos.org/files/collapseos-${finalAttrs.version}.tar.gz";
     hash = "sha256-8bt6wj93T82K9fqtuC/mctkMCzfvW0taxv6QAKeJb5g=";
   };
   buildInputs = [ ncurses ];