diff --git a/build-constraints.yaml b/build-constraints.yaml
index 16307eec..317d2c9a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3256,6 +3256,9 @@ packages:
         # https://github.com/silkapp/rest/issues/157
         - rest-client < 0.5.2.1
 
+        # https://github.com/fpco/stackage/issues/3228
+        - ratel < 1
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of