diff --git a/test/environment/grpc/requirements.txt b/test/environment/grpc/requirements.txt
index e034d0f7..53a910cc 100644
--- a/test/environment/grpc/requirements.txt
+++ b/test/environment/grpc/requirements.txt
@@ -2,4 +2,4 @@ grpcio==1.56.0
 grpcio-health-checking==1.56.0
 grpcio-reflection==1.56.0
 grpcio-testing==1.56.0
-grpcio-tools==1.55.0
+grpcio-tools==1.56.0