diff --git a/build-constraints.yaml b/build-constraints.yaml
index fb77b197..751fc847 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5253,7 +5253,9 @@ packages:
         # Need to always match the version shipped with GHC
         - Win32 == 2.6.1.0
 
-    "Stackage upper bounds": []
+    "Stackage upper bounds":
+      # https://github.com/commercialhaskell/stackage/issues/4958
+      - haskell-src-exts < 1.22.0
 
 # end of packages