diff --git a/appengine/standard/flask/tutorial/requirements.txt b/appengine/standard/flask/tutorial/requirements.txt
index f7114597264..d050350006d 100644
--- a/appengine/standard/flask/tutorial/requirements.txt
+++ b/appengine/standard/flask/tutorial/requirements.txt
@@ -1,4 +1,2 @@
 Flask==0.12.2
-# v0.13 uses tempfile.SpooledTemporaryFile which is not supported in the app		 +Werkzeug==0.13
-# engine sandbox. See https://cloud.google.com/appengine/docs/standard/python/runtime#customized-libraries-in-python-version-27		
-Werkzeug>=0.12.0,<0.13.0
+Werkzeug<0.13.0,>=0.12.0
diff --git a/endpoints/bookstore-grpc/requirements.txt b/endpoints/bookstore-grpc/requirements.txt
index 98382dac527..65942246425 100644
--- a/endpoints/bookstore-grpc/requirements.txt
+++ b/endpoints/bookstore-grpc/requirements.txt
@@ -1,2 +1,2 @@
-grpcio==1.7.3
+grpcio==1.8.0
 google-auth==1.2.1
diff --git a/endpoints/getting-started-grpc/requirements.txt b/endpoints/getting-started-grpc/requirements.txt
index a9cb0ac261e..96026073a0d 100644
--- a/endpoints/getting-started-grpc/requirements.txt
+++ b/endpoints/getting-started-grpc/requirements.txt
@@ -1,2 +1,2 @@
-grpcio==1.7.3
-grpcio-tools==1.7.0
+grpcio==1.8.0
+grpcio-tools==1.8.0