diff --git a/http2/python-grpc/requirements.txt b/http2/python-grpc/requirements.txt
index e6d57e8..83ff522 100644
--- a/http2/python-grpc/requirements.txt
+++ b/http2/python-grpc/requirements.txt
@@ -1,2 +1,2 @@
 grpcio-reflection==1.63.0
-grpcio==1.63.0
+grpcio==1.64.0