diff --git a/build-constraints.yaml b/build-constraints.yaml
index e6bd5fdf..f24c48e0 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2208,7 +2208,7 @@ packages:
         - data-default < 0.6.0
 
         # https://github.com/fpco/stackage/issues/1380
-        - Diff < 0.3.4
+        - Diff < 0.3.3
 # end of packages