diff --git a/build-constraints.yaml b/build-constraints.yaml
index 17bd8ab6..6e81c0f1 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -44,7 +44,7 @@ packages:
         - persistent-postgresql
         - persistent-sqlite
         - persistent-template
-        # GHC 8 - stm-conduit
+        - stm-conduit
         - wai-websockets
         - warp-tls
         - yackage