diff --git a/build-constraints.yaml b/build-constraints.yaml
index d511738a..8e06ad25 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7952,6 +7952,7 @@ skipped-tests:
     # Failing to build aeson-2.0 bump
     - ua-parser # https://github.com/commercialhaskell/stackage/issues/6440
     - vinyl # https://github.com/commercialhaskell/stackage/issues/6444
+    - htoml-megaparsec # https://github.com/commercialhaskell/stackage/pull/6533
 
     # general failures
     - aern2-mp            # https://github.com/michalkonecny/aern2/issues/11