diff --git a/build-constraints.yaml b/build-constraints.yaml
index a2681b86..7d1caf2e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3585,6 +3585,8 @@ packages:
     "Domen Kozar <domen@enlambda.com> @domenkozar":
         - cachix < 0
         - cachix-api
+        - elm2nix
+        - stack2nix
         - mixpanel-client
         - pretty-sop
         - servant-auth