diff --git a/build-constraints.yaml b/build-constraints.yaml
index d1298f0b..b90bc9fa 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4393,6 +4393,9 @@ packages:
         # https://github.com/commercialhaskell/stackage/issues/4346
         - servant-blaze < 0.9
 
+        # https://github.com/commercialhaskell/stackage/issues/4347
+        - snap-server < 1.1.1.0
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of