diff --git a/build-constraints.yaml b/build-constraints.yaml
index 832092d4..de198b57 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -917,6 +917,7 @@ packages:
         - haddock-library < 1.2
         - hdocs < 0.4.2
         - haskell-packages < 0.3
+        - compdata < 0.10
 
         # Force a specific version that's compatible with transformers 0.3
         - transformers-compat == 0.4.0.3