diff --git a/external/src/grpc b/external/src/grpc
index f69c18a..70cfb88 160000
--- a/external/src/grpc
+++ b/external/src/grpc
@@ -1 +1 @@
-Subproject commit f69c18a9e5f5463bf3a3595772220cb72a3854e1
+Subproject commit 70cfb88491f6fc4d057bf4818f3645eafdf06fdf