diff --git a/appengine/standard/firebase/firenotes/backend/requirements.txt b/appengine/standard/firebase/firenotes/backend/requirements.txt
index 4f3d8803bf34..581103baeccc 100644
--- a/appengine/standard/firebase/firenotes/backend/requirements.txt
+++ b/appengine/standard/firebase/firenotes/backend/requirements.txt
@@ -1,6 +1,6 @@
 Flask==1.1.2
 pyjwt==1.7.1
 flask-cors==3.0.9
-google-auth==1.21.1
+google-auth==1.21.2
 requests==2.24.0
 requests-toolbelt==0.9.1
diff --git a/appengine/standard/firebase/firetactoe/requirements.txt b/appengine/standard/firebase/firetactoe/requirements.txt
index 18e3ba545357..da58f9168a2c 100644
--- a/appengine/standard/firebase/firetactoe/requirements.txt
+++ b/appengine/standard/firebase/firetactoe/requirements.txt
@@ -1,5 +1,5 @@
 flask==1.1.2
 requests==2.24.0
 requests_toolbelt==0.9.1
-google-auth==1.21.1
+google-auth==1.21.2
 functools32==3.2.3.post2; python_version < "3"
diff --git a/appengine/standard/migration/incoming/requirements.txt b/appengine/standard/migration/incoming/requirements.txt
index 4ca684951812..6f467a5a2953 100644
--- a/appengine/standard/migration/incoming/requirements.txt
+++ b/appengine/standard/migration/incoming/requirements.txt
@@ -1,2 +1,2 @@
-google-auth==1.21.1
+google-auth==1.21.2
 requests==2.24.0
\ No newline at end of file
diff --git a/appengine/standard/storage/api-client/requirements.txt b/appengine/standard/storage/api-client/requirements.txt
index 7858cee7e3a7..85a462c8be7f 100644
--- a/appengine/standard/storage/api-client/requirements.txt
+++ b/appengine/standard/storage/api-client/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
diff --git a/appengine/standard_python3/building-an-app/building-an-app-3/requirements.txt b/appengine/standard_python3/building-an-app/building-an-app-3/requirements.txt
index b11d6c95aed3..278a09b2a7e7 100644
--- a/appengine/standard_python3/building-an-app/building-an-app-3/requirements.txt
+++ b/appengine/standard_python3/building-an-app/building-an-app-3/requirements.txt
@@ -1,4 +1,4 @@
 Flask==1.1.2
 google-cloud-datastore==1.15.0
-google-auth==1.21.1
+google-auth==1.21.2
 requests==2.24.0
diff --git a/appengine/standard_python3/building-an-app/building-an-app-4/requirements.txt b/appengine/standard_python3/building-an-app/building-an-app-4/requirements.txt
index b11d6c95aed3..278a09b2a7e7 100644
--- a/appengine/standard_python3/building-an-app/building-an-app-4/requirements.txt
+++ b/appengine/standard_python3/building-an-app/building-an-app-4/requirements.txt
@@ -1,4 +1,4 @@
 Flask==1.1.2
 google-cloud-datastore==1.15.0
-google-auth==1.21.1
+google-auth==1.21.2
 requests==2.24.0
diff --git a/appengine/standard_python3/migration/urlfetch/requirements.txt b/appengine/standard_python3/migration/urlfetch/requirements.txt
index 7ac63b1cff5e..64962abff96d 100644
--- a/appengine/standard_python3/migration/urlfetch/requirements.txt
+++ b/appengine/standard_python3/migration/urlfetch/requirements.txt
@@ -1,3 +1,3 @@
 requests==2.24.0
 flask==1.1.2
-google-auth==1.21.1
\ No newline at end of file
+google-auth==1.21.2
\ No newline at end of file
diff --git a/appengine/standard_python3/pubsub/requirements.txt b/appengine/standard_python3/pubsub/requirements.txt
index c3124e162bef..070d89d0a33f 100644
--- a/appengine/standard_python3/pubsub/requirements.txt
+++ b/appengine/standard_python3/pubsub/requirements.txt
@@ -1,4 +1,4 @@
 Flask==1.1.2
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud-pubsub==1.7.0
diff --git a/auth/api-client/requirements.txt b/auth/api-client/requirements.txt
index 539a84de4a97..4f2e57768827 100644
--- a/auth/api-client/requirements.txt
+++ b/auth/api-client/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.11.0
 google-auth-httplib2==0.0.4
-google-auth==1.21.1
+google-auth==1.21.2
diff --git a/auth/end-user/web/requirements.txt b/auth/end-user/web/requirements.txt
index a1148afc75da..5363dabbe2f8 100644
--- a/auth/end-user/web/requirements.txt
+++ b/auth/end-user/web/requirements.txt
@@ -1,4 +1,4 @@
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-oauthlib==0.4.1
 google-auth-httplib2==0.0.4
 google-api-python-client==1.11.0
diff --git a/auth/service-to-service/requirements.txt b/auth/service-to-service/requirements.txt
index e3dbb95a4601..beea9cdd7526 100644
--- a/auth/service-to-service/requirements.txt
+++ b/auth/service-to-service/requirements.txt
@@ -1,2 +1,2 @@
-google-auth==1.21.1
+google-auth==1.21.2
 requests==2.24.0
diff --git a/bigquery_storage/to_dataframe/requirements.txt b/bigquery_storage/to_dataframe/requirements.txt
index 368c0a5b2002..e4cef98f5297 100644
--- a/bigquery_storage/to_dataframe/requirements.txt
+++ b/bigquery_storage/to_dataframe/requirements.txt
@@ -1,4 +1,4 @@
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud-bigquery-storage==1.0.0
 google-cloud-bigquery==1.25.0
 pyarrow==1.0.1
diff --git a/composer/functions/requirements.txt b/composer/functions/requirements.txt
index a596cfae219b..40d40373c4bc 100644
--- a/composer/functions/requirements.txt
+++ b/composer/functions/requirements.txt
@@ -1,2 +1,2 @@
 requests_toolbelt==0.9.1
-google-auth==1.21.1
+google-auth==1.21.2
diff --git a/composer/rest/requirements.txt b/composer/rest/requirements.txt
index f6dc1e9656e7..4a7e54bd39b6 100644
--- a/composer/rest/requirements.txt
+++ b/composer/rest/requirements.txt
@@ -1,3 +1,3 @@
-google-auth==1.21.1
+google-auth==1.21.2
 requests==2.24.0
 six==1.15.0
diff --git a/compute/api/requirements.txt b/compute/api/requirements.txt
index 7858cee7e3a7..85a462c8be7f 100644
--- a/compute/api/requirements.txt
+++ b/compute/api/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
diff --git a/compute/auth/requirements.txt b/compute/auth/requirements.txt
index 5a28c9c1fe38..a7c0d17557bd 100644
--- a/compute/auth/requirements.txt
+++ b/compute/auth/requirements.txt
@@ -1,4 +1,4 @@
 requests==2.24.0
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
diff --git a/compute/encryption/requirements.txt b/compute/encryption/requirements.txt
index e7bf7f4e3b31..48fa41eeebf1 100644
--- a/compute/encryption/requirements.txt
+++ b/compute/encryption/requirements.txt
@@ -1,5 +1,5 @@
 cryptography==3.1
 requests==2.24.0
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
diff --git a/compute/oslogin/requirements.txt b/compute/oslogin/requirements.txt
index 338c18894950..db1d997a3059 100644
--- a/compute/oslogin/requirements.txt
+++ b/compute/oslogin/requirements.txt
@@ -1,4 +1,4 @@
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
 requests==2.24.0
diff --git a/endpoints/bookstore-grpc-transcoding/requirements.txt b/endpoints/bookstore-grpc-transcoding/requirements.txt
index f47b355bc5d8..a58f0de76edd 100644
--- a/endpoints/bookstore-grpc-transcoding/requirements.txt
+++ b/endpoints/bookstore-grpc-transcoding/requirements.txt
@@ -1,4 +1,4 @@
 grpcio==1.32.0
 grpcio-tools==1.32.0
-google-auth==1.21.0
+google-auth==1.21.2
 six==1.15.0
diff --git a/endpoints/bookstore-grpc/requirements.txt b/endpoints/bookstore-grpc/requirements.txt
index f47b355bc5d8..a58f0de76edd 100644
--- a/endpoints/bookstore-grpc/requirements.txt
+++ b/endpoints/bookstore-grpc/requirements.txt
@@ -1,4 +1,4 @@
 grpcio==1.32.0
 grpcio-tools==1.32.0
-google-auth==1.21.0
+google-auth==1.21.2
 six==1.15.0
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 7858cee7e3a7..85a462c8be7f 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==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
diff --git a/endpoints/getting-started/requirements.txt b/endpoints/getting-started/requirements.txt
index de62f6fd4bf8..59ea4f18b71c 100644
--- a/endpoints/getting-started/requirements.txt
+++ b/endpoints/getting-started/requirements.txt
@@ -4,5 +4,5 @@ gunicorn==20.0.4
 six==1.15.0
 pyyaml==5.3.1
 requests==2.24.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-oauthlib==0.4.1
diff --git a/healthcare/api-client/datasets/requirements.txt b/healthcare/api-client/datasets/requirements.txt
index 86a4c9af4c47..90931936f618 100644
--- a/healthcare/api-client/datasets/requirements.txt
+++ b/healthcare/api-client/datasets/requirements.txt
@@ -1,4 +1,4 @@
 google-api-python-client==1.11.0
 google-auth-httplib2==0.0.4
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud==0.34.0
diff --git a/healthcare/api-client/dicom/requirements.txt b/healthcare/api-client/dicom/requirements.txt
index 4be041e7e9ee..b3e7d2c3ef6f 100644
--- a/healthcare/api-client/dicom/requirements.txt
+++ b/healthcare/api-client/dicom/requirements.txt
@@ -1,5 +1,5 @@
 google-api-python-client==1.11.0
 google-auth-httplib2==0.0.4
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud-pubsub==1.7.0
 requests==2.24.0
diff --git a/healthcare/api-client/fhir/requirements.txt b/healthcare/api-client/fhir/requirements.txt
index 7b83a3a21d74..a30ad26b83a2 100644
--- a/healthcare/api-client/fhir/requirements.txt
+++ b/healthcare/api-client/fhir/requirements.txt
@@ -1,6 +1,6 @@
 google-api-python-client==1.11.0
 google-auth-httplib2==0.0.4
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud==0.34.0
 google-cloud-storage==1.31.0
 requests==2.24.0
diff --git a/healthcare/api-client/hl7v2/requirements.txt b/healthcare/api-client/hl7v2/requirements.txt
index 86a4c9af4c47..90931936f618 100644
--- a/healthcare/api-client/hl7v2/requirements.txt
+++ b/healthcare/api-client/hl7v2/requirements.txt
@@ -1,4 +1,4 @@
 google-api-python-client==1.11.0
 google-auth-httplib2==0.0.4
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud==0.34.0
diff --git a/healthcare/api-client/v1/datasets/requirements.txt b/healthcare/api-client/v1/datasets/requirements.txt
index 86a4c9af4c47..90931936f618 100644
--- a/healthcare/api-client/v1/datasets/requirements.txt
+++ b/healthcare/api-client/v1/datasets/requirements.txt
@@ -1,4 +1,4 @@
 google-api-python-client==1.11.0
 google-auth-httplib2==0.0.4
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud==0.34.0
diff --git a/healthcare/api-client/v1/dicom/requirements.txt b/healthcare/api-client/v1/dicom/requirements.txt
index 4be041e7e9ee..b3e7d2c3ef6f 100644
--- a/healthcare/api-client/v1/dicom/requirements.txt
+++ b/healthcare/api-client/v1/dicom/requirements.txt
@@ -1,5 +1,5 @@
 google-api-python-client==1.11.0
 google-auth-httplib2==0.0.4
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud-pubsub==1.7.0
 requests==2.24.0
diff --git a/healthcare/api-client/v1/fhir/requirements.txt b/healthcare/api-client/v1/fhir/requirements.txt
index b6b38d26ca99..07f90c7745d1 100644
--- a/healthcare/api-client/v1/fhir/requirements.txt
+++ b/healthcare/api-client/v1/fhir/requirements.txt
@@ -1,5 +1,5 @@
 google-api-python-client==1.11.0
 google-auth-httplib2==0.0.4
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud==0.34.0
 google-cloud-storage==1.31.0
diff --git a/healthcare/api-client/v1/hl7v2/requirements.txt b/healthcare/api-client/v1/hl7v2/requirements.txt
index 86a4c9af4c47..90931936f618 100644
--- a/healthcare/api-client/v1/hl7v2/requirements.txt
+++ b/healthcare/api-client/v1/hl7v2/requirements.txt
@@ -1,4 +1,4 @@
 google-api-python-client==1.11.0
 google-auth-httplib2==0.0.4
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud==0.34.0
diff --git a/iam/api-client/requirements.txt b/iam/api-client/requirements.txt
index 7858cee7e3a7..85a462c8be7f 100644
--- a/iam/api-client/requirements.txt
+++ b/iam/api-client/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
diff --git a/iap/requirements.txt b/iap/requirements.txt
index 0cc433ebe922..d6edd2dfdc7e 100644
--- a/iap/requirements.txt
+++ b/iap/requirements.txt
@@ -1,6 +1,6 @@
 cryptography==3.1
 flask==1.1.2
-google-auth==1.21.1
+google-auth==1.21.2
 gunicorn==20.0.4
 requests==2.24.0
 requests_toolbelt==0.9.1
diff --git a/iot/api-client/end_to_end_example/requirements.txt b/iot/api-client/end_to_end_example/requirements.txt
index 4db21a039175..79af9cf3b916 100644
--- a/iot/api-client/end_to_end_example/requirements.txt
+++ b/iot/api-client/end_to_end_example/requirements.txt
@@ -1,7 +1,7 @@
 cryptography==3.1
 google-api-python-client==1.11.0
 google-auth-httplib2==0.0.4
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud-pubsub==1.7.0
 pyjwt==1.7.1
 paho-mqtt==1.5.0
diff --git a/iot/api-client/gcs_file_to_device/requirements.txt b/iot/api-client/gcs_file_to_device/requirements.txt
index db7857aec415..295d2ea8282f 100644
--- a/iot/api-client/gcs_file_to_device/requirements.txt
+++ b/iot/api-client/gcs_file_to_device/requirements.txt
@@ -1,5 +1,5 @@
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
 google-cloud-iot==1.0.0
 google-cloud-pubsub==1.7.0
diff --git a/iot/api-client/http_example/requirements.txt b/iot/api-client/http_example/requirements.txt
index 6c50f3949bca..44bc6811ab56 100644
--- a/iot/api-client/http_example/requirements.txt
+++ b/iot/api-client/http_example/requirements.txt
@@ -1,7 +1,7 @@
 cryptography==3.1
 google-api-python-client==1.11.0
 google-auth-httplib2==0.0.4
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud-iot==1.0.0
 google-cloud-pubsub==1.7.0
 pyjwt==1.7.1
diff --git a/iot/api-client/mqtt_example/requirements.txt b/iot/api-client/mqtt_example/requirements.txt
index bb13c310144f..df2388766ecc 100644
--- a/iot/api-client/mqtt_example/requirements.txt
+++ b/iot/api-client/mqtt_example/requirements.txt
@@ -1,7 +1,7 @@
 cryptography==3.1
 google-api-python-client==1.11.0
 google-auth-httplib2==0.0.4
-google-auth==1.21.1
+google-auth==1.21.2
 google-cloud-pubsub==1.7.0
 google-cloud-iot==1.0.0
 grpc-google-iam-v1==0.12.3
diff --git a/jobs/v3/api_client/requirements.txt b/jobs/v3/api_client/requirements.txt
index 7858cee7e3a7..85a462c8be7f 100755
--- a/jobs/v3/api_client/requirements.txt
+++ b/jobs/v3/api_client/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
diff --git a/kubernetes_engine/api-client/requirements.txt b/kubernetes_engine/api-client/requirements.txt
index 7858cee7e3a7..85a462c8be7f 100644
--- a/kubernetes_engine/api-client/requirements.txt
+++ b/kubernetes_engine/api-client/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
diff --git a/language/api/requirements.txt b/language/api/requirements.txt
index 7858cee7e3a7..85a462c8be7f 100644
--- a/language/api/requirements.txt
+++ b/language/api/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
diff --git a/ml_engine/online_prediction/requirements.txt b/ml_engine/online_prediction/requirements.txt
index 7253274885c5..36fed99bf08e 100644
--- a/ml_engine/online_prediction/requirements.txt
+++ b/ml_engine/online_prediction/requirements.txt
@@ -1,5 +1,5 @@
 tensorflow==2.0.1; python_version > "3.0"
 tensorflow==1.15.0; python_version < "3.0"
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
diff --git a/monitoring/api/v3/api-client/requirements.txt b/monitoring/api/v3/api-client/requirements.txt
index 7858cee7e3a7..85a462c8be7f 100644
--- a/monitoring/api/v3/api-client/requirements.txt
+++ b/monitoring/api/v3/api-client/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
diff --git a/run/markdown-preview/editor/requirements.txt b/run/markdown-preview/editor/requirements.txt
index 33860a4affb1..ebadd01bb86f 100644
--- a/run/markdown-preview/editor/requirements.txt
+++ b/run/markdown-preview/editor/requirements.txt
@@ -1,4 +1,4 @@
 Flask==1.1.1
 gunicorn==20.0.4
-google-auth==1.21.1
+google-auth==1.21.2
 requests==2.24.0
\ No newline at end of file
diff --git a/run/markdown-preview/requirements-test.txt b/run/markdown-preview/requirements-test.txt
index 9e165dcf5b50..6dd7d4d96ffd 100644
--- a/run/markdown-preview/requirements-test.txt
+++ b/run/markdown-preview/requirements-test.txt
@@ -1,3 +1,3 @@
 pytest==6.0.1
-google-auth==1.21.1
+google-auth==1.21.2
 google-api-python-client==1.11.0
diff --git a/storage/api/requirements.txt b/storage/api/requirements.txt
index 7858cee7e3a7..85a462c8be7f 100644
--- a/storage/api/requirements.txt
+++ b/storage/api/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4
diff --git a/storage/signed_urls/requirements.txt b/storage/signed_urls/requirements.txt
index 67d76d588d98..cc579acbbb3e 100644
--- a/storage/signed_urls/requirements.txt
+++ b/storage/signed_urls/requirements.txt
@@ -1,3 +1,3 @@
 google-cloud-storage==1.31.0
-google-auth==1.21.1
+google-auth==1.21.2
 six==1.15.0
diff --git a/storage/transfer_service/requirements.txt b/storage/transfer_service/requirements.txt
index 7858cee7e3a7..85a462c8be7f 100644
--- a/storage/transfer_service/requirements.txt
+++ b/storage/transfer_service/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==1.11.0
-google-auth==1.21.1
+google-auth==1.21.2
 google-auth-httplib2==0.0.4