diff --git a/build-constraints.yaml b/build-constraints.yaml
index 48303092..75ae9acf 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4655,6 +4655,9 @@ packages:
         - servant < 0.16.1
         - servant-server < 0.16.1
 
+        # https://github.com/commercialhaskell/stackage/issues/4595
+        - polysemy < 0.2.2
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of