diff --git a/test/environment/grpc/requirements.txt b/test/environment/grpc/requirements.txt
index aae5b636..80719a45 100644
--- a/test/environment/grpc/requirements.txt
+++ b/test/environment/grpc/requirements.txt
@@ -1,5 +1,5 @@
 grpcio==1.56.0
 grpcio-health-checking==1.55.0
 grpcio-reflection==1.55.0
-grpcio-testing==1.55.0
+grpcio-testing==1.56.0
 grpcio-tools==1.55.0