diff --git a/build-constraints.yaml b/build-constraints.yaml
index 0fd374d0..6408927b 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3155,7 +3155,9 @@ packages:
         - haskell-src-meta < 0.8
 
         # https://github.com/fpco/stackage/issues/2494
+        # Indirectly blocked on fpco/stackage/issues/245
         - websockets-simple < 0.0.2.1
+        - websockets-rpc < 0.4.1
 
 # end of packages