diff --git a/build-constraints.yaml b/build-constraints.yaml
index b2d4ce146..ef642e3bc 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8040,6 +8040,9 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/7584
         - hashtables < 1.4
 
+        # https://github.com/commercialhaskell/stackage/issues/7585
+        - megaparsec < 9.7
+
     # end of Stackage upper bounds
 # end of packages