diff --git a/build-constraints.yaml b/build-constraints.yaml
index 21764d64..8cb60749 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -254,7 +254,7 @@ packages:
         - indents
         - language-c
         - lhs2tex
-        # - persistent-mongoDB # bounds: http-api-data
+        - persistent-mongoDB
         - pretty-class
         - th-expand-syns
         - th-lift