diff --git a/appengine/standard/firebase/firenotes/backend/requirements.txt b/appengine/standard/firebase/firenotes/backend/requirements.txt
index eda5b3d9e168..44e918c8f94e 100644
--- a/appengine/standard/firebase/firenotes/backend/requirements.txt
+++ b/appengine/standard/firebase/firenotes/backend/requirements.txt
@@ -1,6 +1,6 @@
 Flask==0.12.2
 pyjwt==1.5.3
 flask-cors==3.0.3
-google-auth==1.0.2
+google-auth==1.1.0
 requests==2.18.4
 requests-toolbelt==0.8.0
diff --git a/auth/api-client/requirements.txt b/auth/api-client/requirements.txt
index db5fdf32fb41..10d8be3b397d 100644
--- a/auth/api-client/requirements.txt
+++ b/auth/api-client/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.6.3
 google-auth-httplib2==0.0.2
-google-auth==1.0.2
+google-auth==1.1.0
diff --git a/auth/http-client/requirements.txt b/auth/http-client/requirements.txt
index 2c130de5c787..42eda48e31f9 100644
--- a/auth/http-client/requirements.txt
+++ b/auth/http-client/requirements.txt
@@ -1,2 +1,2 @@
 requests==2.18.4
-google-auth==1.0.2
+google-auth==1.1.0
diff --git a/bigquery/rest/requirements.txt b/bigquery/rest/requirements.txt
index 8eac7cdcc656..6586c4dc6830 100644
--- a/bigquery/rest/requirements.txt
+++ b/bigquery/rest/requirements.txt
@@ -1,2 +1,2 @@
-google-auth==1.0.2
+google-auth==1.1.0
 requests==2.18.4
diff --git a/container_engine/api-client/requirements.txt b/container_engine/api-client/requirements.txt
index c7bb238c4bb1..938f89e62700 100644
--- a/container_engine/api-client/requirements.txt
+++ b/container_engine/api-client/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.6.3
-google-auth==1.0.2
+google-auth==1.1.0
 google-auth-httplib2==0.0.2
diff --git a/endpoints/bookstore-grpc/requirements.txt b/endpoints/bookstore-grpc/requirements.txt
index 4039ec25ae1e..b4b58ea102bf 100644
--- a/endpoints/bookstore-grpc/requirements.txt
+++ b/endpoints/bookstore-grpc/requirements.txt
@@ -1,2 +1,2 @@
 grpcio==1.6.0
-google-auth==1.0.2
+google-auth==1.1.0
diff --git a/endpoints/getting-started/clients/service_to_service_non_default/requirements.txt b/endpoints/getting-started/clients/service_to_service_non_default/requirements.txt
index c7bb238c4bb1..938f89e62700 100644
--- a/endpoints/getting-started/clients/service_to_service_non_default/requirements.txt
+++ b/endpoints/getting-started/clients/service_to_service_non_default/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.6.3
-google-auth==1.0.2
+google-auth==1.1.0
 google-auth-httplib2==0.0.2
diff --git a/endpoints/getting-started/requirements.txt b/endpoints/getting-started/requirements.txt
index 1202a8070bd9..258a241c96e5 100644
--- a/endpoints/getting-started/requirements.txt
+++ b/endpoints/getting-started/requirements.txt
@@ -4,5 +4,5 @@ gunicorn==19.7.1
 six==1.10.0
 pyyaml==3.12
 requests==2.18.4
-google-auth==1.0.2
+google-auth==1.1.0
 google-auth-oauthlib==0.1.0
diff --git a/iap/requirements.txt b/iap/requirements.txt
index a45901752964..8d9b630ce783 100644
--- a/iap/requirements.txt
+++ b/iap/requirements.txt
@@ -1,5 +1,5 @@
 PyJWT==1.5.3
 cryptography==2.0.3
-google-auth==1.0.2
+google-auth==1.1.0
 requests==2.18.4
 requests_toolbelt==0.8.0
diff --git a/iot/api-client/manager/requirements.txt b/iot/api-client/manager/requirements.txt
index 21e42e063cc3..0dbef4aac3c8 100644
--- a/iot/api-client/manager/requirements.txt
+++ b/iot/api-client/manager/requirements.txt
@@ -1,4 +1,4 @@
 google-api-python-client==1.6.3
 google-auth-httplib2==0.0.2
-google-auth==1.0.2
+google-auth==1.1.0
 google-cloud==0.27.0