diff --git a/build-constraints.yaml b/build-constraints.yaml
index b3bf264f..f4dbfc6f 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1720,7 +1720,7 @@ packages:
     "Fumiaki Kinoshita <fumiexcel@gmail.com> @fumieval":
         - boundingboxes
         - control-bool
-        # - extensible # GHC 8.2.1 via effin
+        - extensible
         - monad-skeleton
         - objective
         - witherable