diff --git a/build-constraints.yaml b/build-constraints.yaml
index 2550d988..be0bf008 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2783,6 +2783,9 @@ packages:
         - hspec-core < 2.4
         - hspec-discover < 2.4
 
+        # https://github.com/fpco/stackage/issues/2237
+        - constraints < 0.9
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of