diff --git a/build-constraints.yaml b/build-constraints.yaml
index bddb0216..d1579e88 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1032,7 +1032,7 @@ packages:
         - arithmoi
         - friendly-time
         - hashable
-        # - haxl # https://github.com/facebook/Haxl/issues/57
+        - haxl
         - monad-time
         - packdeps
         - recursion-schemes