diff --git a/build-constraints.yaml b/build-constraints.yaml
index 47eb3f9f..a8deda48 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3345,6 +3345,9 @@ packages:
         # https://github.com/fpco/stackage/issues/3268
         - async < 2.2
 
+        # https://github.com/tsani/servant-github-webhook/issues/9
+        - servant-github-webhook < 0.4
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of