diff --git a/build-constraints.yaml b/build-constraints.yaml
index 8d4f6245..87778d90 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -153,6 +153,7 @@ packages:
         - Earley
         - ofx
         - pinchot
+        - validation
 
     "Neil Mitchell":
         - hlint