diff --git a/pkgs/by-name/co/cosmic-wallpapers/package.nix b/pkgs/by-name/co/cosmic-wallpapers/package.nix
index 1088d5ba18a4..97b505e03623 100644
--- a/pkgs/by-name/co/cosmic-wallpapers/package.nix
+++ b/pkgs/by-name/co/cosmic-wallpapers/package.nix
@@ -22,6 +22,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   makeFlags = [ "prefix=${placeholder "out"}" ];
 
   __structuredAttrs = true;
+  strictDeps = true;
 
   passthru.updateScript = nix-update-script {
     extraArgs = [