diff --git a/vendor/grpc-haskell b/vendor/grpc-haskell
index 2e6c99bb2..564b1a087 160000
--- a/vendor/grpc-haskell
+++ b/vendor/grpc-haskell
@@ -1 +1 @@
-Subproject commit 2e6c99bb2512548b59505631b6c89e489b92e638
+Subproject commit 564b1a0870dafb0e5e38a066b7f11222c4f602ce