diff --git a/endpoints/bookstore-grpc-transcoding/requirements.txt b/endpoints/bookstore-grpc-transcoding/requirements.txt
index aaf05620532..7ea688aa14c 100644
--- a/endpoints/bookstore-grpc-transcoding/requirements.txt
+++ b/endpoints/bookstore-grpc-transcoding/requirements.txt
@@ -1,3 +1,3 @@
-grpcio-tools==1.42.0
+grpcio-tools==1.43.0
 google-auth==2.3.3
 six==1.16.0
diff --git a/endpoints/bookstore-grpc/requirements.txt b/endpoints/bookstore-grpc/requirements.txt
index aaf05620532..7ea688aa14c 100644
--- a/endpoints/bookstore-grpc/requirements.txt
+++ b/endpoints/bookstore-grpc/requirements.txt
@@ -1,3 +1,3 @@
-grpcio-tools==1.42.0
+grpcio-tools==1.43.0
 google-auth==2.3.3
 six==1.16.0
diff --git a/endpoints/getting-started-grpc/requirements.txt b/endpoints/getting-started-grpc/requirements.txt
index 089c760da97..fa89b011966 100644
--- a/endpoints/getting-started-grpc/requirements.txt
+++ b/endpoints/getting-started-grpc/requirements.txt
@@ -1 +1 @@
-grpcio-tools==1.42.0
+grpcio-tools==1.43.0