diff --git a/build-constraints.yaml b/build-constraints.yaml
index 204dd8dc..63b4d190 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -6793,6 +6793,8 @@ packages:
       # https://github.com/commercialhaskell/stackage/issues/6393
       - flow < 2.0.0.0
 
+      # https://github.com/commercialhaskell/stackage/issues/6395
+      - wuss < 2.0
 
 # end of packages