diff --git a/build-constraints.yaml b/build-constraints.yaml
index 1eb8983e..3cb191b8 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3104,6 +3104,8 @@ packages:
         # https://github.com/fpco/stackage/issues/3079
         - generic-deriving < 1.12
 
+        # https://github.com/fpco/stackage/issues/3093
+        - haskell-src-exts < 1.20.1
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of