diff --git a/build-constraints.yaml b/build-constraints.yaml
index d31a2225..3cbfdcf6 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3438,7 +3438,7 @@ packages:
 
         # https://github.com/athanclark/websockets-rpc/issues/2
         # (downstream build failure)
-        - websockets-simple < 0.1
+        - websockets-simple < 0.0.7
 
         # Requires too-new or too-old Cabal
         - cabal2nix < 2.9 # Cabal >2.2