diff --git a/build-constraints.yaml b/build-constraints.yaml
index 7ab45de7..6b43ef07 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -8565,6 +8565,9 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/7306
         - ansi-terminal < 1.1
         - ansi-terminal-types < 1.1
+
+        # https://github.com/commercialhaskell/stackage/issues/7309
+        - zlib < 0.7
     # end of Stackage upper bounds
 # end of packages