diff --git a/appengine/standard/firebase/firenotes/backend/requirements.txt b/appengine/standard/firebase/firenotes/backend/requirements.txt
index cfd958d5a08..ab78fded00b 100644
--- a/appengine/standard/firebase/firenotes/backend/requirements.txt
+++ b/appengine/standard/firebase/firenotes/backend/requirements.txt
@@ -2,6 +2,7 @@ Flask==1.1.4; python_version < '3.0'
 Flask==2.0.0; python_version > '3.0'
 pyjwt==1.7.1; python_version < '3.0'
 flask-cors==3.0.10
-google-auth==1.31.0
+google-auth==1.35.0; python_version < '3.0'
+google-auth==2.0.0; python_version > '3.0'
 requests==2.26.0
 requests-toolbelt==0.9.1
diff --git a/appengine/standard/firebase/firetactoe/requirements.txt b/appengine/standard/firebase/firetactoe/requirements.txt
index 7d8d732afd0..afa6a13152a 100644
--- a/appengine/standard/firebase/firetactoe/requirements.txt
+++ b/appengine/standard/firebase/firetactoe/requirements.txt
@@ -2,5 +2,6 @@ Flask==1.1.4; python_version < '3.0'
 Flask==2.0.0; python_version > '3.0'
 requests==2.26.0
 requests_toolbelt==0.9.1
-google-auth==1.31.0
+google-auth==1.35.0; python_version < '3.0'
+google-auth==2.0.0; python_version > '3.0'
 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 74a76a3975d..fd75cd668c9 100644
--- a/appengine/standard/migration/incoming/requirements.txt
+++ b/appengine/standard/migration/incoming/requirements.txt
@@ -1,2 +1,3 @@
-google-auth==1.31.0
-requests==2.26.0
\ No newline at end of file
+google-auth==1.35.0; python_version < '3.0'
+google-auth==2.0.0; python_version > '3.0'
+requests==2.26.0
diff --git a/appengine/standard/storage/api-client/requirements.txt b/appengine/standard/storage/api-client/requirements.txt
index 874c0c2e38f..056b8f2046b 100644
--- a/appengine/standard/storage/api-client/requirements.txt
+++ b/appengine/standard/storage/api-client/requirements.txt
@@ -1,3 +1,4 @@
 google-api-python-client==1.12.8; python_version < '3.0'
-google-auth==1.31.0
+google-auth==1.35.0; python_version < '3.0'
+google-auth==2.0.0; python_version > '3.0'
 google-auth-httplib2==0.1.0
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 2ed345c3b9c..5dc919c3799 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==2.0.1
 google-cloud-datastore==2.1.6
-google-auth==1.31.0
+google-auth==2.0.0
 requests==2.26.0
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 2ed345c3b9c..5dc919c3799 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==2.0.1
 google-cloud-datastore==2.1.6
-google-auth==1.31.0
+google-auth==2.0.0
 requests==2.26.0
diff --git a/appengine/standard_python3/migration/urlfetch/requirements.txt b/appengine/standard_python3/migration/urlfetch/requirements.txt
index 7c5463a55d5..3675fe56f15 100644
--- a/appengine/standard_python3/migration/urlfetch/requirements.txt
+++ b/appengine/standard_python3/migration/urlfetch/requirements.txt
@@ -1,3 +1,3 @@
 requests==2.26.0
 flask==2.0.1
-google-auth==1.31.0
+google-auth==2.0.0
diff --git a/appengine/standard_python3/pubsub/requirements.txt b/appengine/standard_python3/pubsub/requirements.txt
index 6e1230b160d..928c5e1cc4f 100644
--- a/appengine/standard_python3/pubsub/requirements.txt
+++ b/appengine/standard_python3/pubsub/requirements.txt
@@ -1,4 +1,4 @@
 Flask==2.0.1
 google-api-python-client==2.17.0
-google-auth==1.31.0
-google-cloud-pubsub==2.7.0
+google-auth==2.0.0
+google-cloud-pubsub==2.7.1
diff --git a/auth/api-client/requirements.txt b/auth/api-client/requirements.txt
index e6ef5558c87..c3534affb77 100644
--- a/auth/api-client/requirements.txt
+++ b/auth/api-client/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==2.17.0
 google-auth-httplib2==0.1.0
-google-auth==1.31.0
+google-auth==2.0.0
diff --git a/auth/downscoping/requirements.txt b/auth/downscoping/requirements.txt
index 505287a480a..639c0935e66 100644
--- a/auth/downscoping/requirements.txt
+++ b/auth/downscoping/requirements.txt
@@ -1,2 +1,2 @@
-google-auth==1.34.0
+google-auth==2.0.0
 google-cloud-storage==1.42.0
\ No newline at end of file
diff --git a/auth/end-user/web/requirements.txt b/auth/end-user/web/requirements.txt
index 9cfe0f5c653..b755861d59c 100644
--- a/auth/end-user/web/requirements.txt
+++ b/auth/end-user/web/requirements.txt
@@ -1,4 +1,4 @@
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-oauthlib==0.4.5
 google-auth-httplib2==0.1.0
 google-api-python-client==2.17.0
diff --git a/auth/service-to-service/requirements.txt b/auth/service-to-service/requirements.txt
index a58090f5599..dcbdf2e8169 100644
--- a/auth/service-to-service/requirements.txt
+++ b/auth/service-to-service/requirements.txt
@@ -1,2 +1,2 @@
-google-auth==1.31.0
+google-auth==2.0.0
 requests==2.26.0
diff --git a/composer/functions/requirements.txt b/composer/functions/requirements.txt
index 6d6d52ce436..a5431bbd472 100644
--- a/composer/functions/requirements.txt
+++ b/composer/functions/requirements.txt
@@ -1,2 +1,2 @@
 requests_toolbelt==0.9.1
-google-auth==1.31.0
+google-auth==2.0.0
diff --git a/composer/rest/requirements.txt b/composer/rest/requirements.txt
index a1d6e2552aa..19c945947c8 100644
--- a/composer/rest/requirements.txt
+++ b/composer/rest/requirements.txt
@@ -1,3 +1,3 @@
-google-auth==1.31.0
+google-auth==2.0.0
 requests==2.26.0
 six==1.16.0
diff --git a/compute/api/requirements.txt b/compute/api/requirements.txt
index 767160786be..78837bd6f08 100644
--- a/compute/api/requirements.txt
+++ b/compute/api/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0
diff --git a/compute/auth/requirements.txt b/compute/auth/requirements.txt
index b08f723e233..513018f70c1 100644
--- a/compute/auth/requirements.txt
+++ b/compute/auth/requirements.txt
@@ -1,4 +1,4 @@
 requests==2.26.0
 google-api-python-client==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0
diff --git a/compute/encryption/requirements.txt b/compute/encryption/requirements.txt
index ed38309d616..b87928fa084 100644
--- a/compute/encryption/requirements.txt
+++ b/compute/encryption/requirements.txt
@@ -1,5 +1,5 @@
 cryptography==3.4.7
 requests==2.26.0
 google-api-python-client==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0
diff --git a/compute/metadata/requirements.txt b/compute/metadata/requirements.txt
index 26adaa8d5a5..f066332b7c4 100644
--- a/compute/metadata/requirements.txt
+++ b/compute/metadata/requirements.txt
@@ -1,2 +1,2 @@
 requests==2.26.0
-google-auth==1.31.0
\ No newline at end of file
+google-auth==2.0.0
\ No newline at end of file
diff --git a/compute/oslogin/requirements.txt b/compute/oslogin/requirements.txt
index e2660ca343c..3fb33df372d 100644
--- a/compute/oslogin/requirements.txt
+++ b/compute/oslogin/requirements.txt
@@ -1,4 +1,4 @@
 google-api-python-client==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0
 requests==2.26.0
diff --git a/endpoints/bookstore-grpc-transcoding/requirements.txt b/endpoints/bookstore-grpc-transcoding/requirements.txt
index b150350c789..8f1078d69a8 100644
--- a/endpoints/bookstore-grpc-transcoding/requirements.txt
+++ b/endpoints/bookstore-grpc-transcoding/requirements.txt
@@ -1,3 +1,3 @@
 grpcio-tools==1.39.0
-google-auth==1.31.0
+google-auth==2.0.0
 six==1.16.0
diff --git a/endpoints/bookstore-grpc/requirements.txt b/endpoints/bookstore-grpc/requirements.txt
index b150350c789..8f1078d69a8 100644
--- a/endpoints/bookstore-grpc/requirements.txt
+++ b/endpoints/bookstore-grpc/requirements.txt
@@ -1,3 +1,3 @@
 grpcio-tools==1.39.0
-google-auth==1.31.0
+google-auth==2.0.0
 six==1.16.0
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 767160786be..78837bd6f08 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==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0
diff --git a/endpoints/getting-started/requirements.txt b/endpoints/getting-started/requirements.txt
index 0128b86087c..e6f3ab10328 100644
--- a/endpoints/getting-started/requirements.txt
+++ b/endpoints/getting-started/requirements.txt
@@ -4,5 +4,5 @@ gunicorn==20.1.0
 six==1.16.0
 pyyaml==5.4.1
 requests==2.26.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-oauthlib==0.4.5
diff --git a/healthcare/api-client/v1/datasets/requirements.txt b/healthcare/api-client/v1/datasets/requirements.txt
index c30012986f4..e6c7657159e 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==2.17.0
 google-auth-httplib2==0.1.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-cloud==0.34.0
diff --git a/healthcare/api-client/v1/dicom/requirements.txt b/healthcare/api-client/v1/dicom/requirements.txt
index c8e83b6ab47..0870f25bf4b 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==2.17.0
 google-auth-httplib2==0.1.0
-google-auth==1.31.0
-google-cloud-pubsub==2.7.0
+google-auth==2.0.0
+google-cloud-pubsub==2.7.1
 requests==2.26.0
diff --git a/healthcare/api-client/v1/fhir/requirements.txt b/healthcare/api-client/v1/fhir/requirements.txt
index 0a21beb76e4..ee7e0820521 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==2.17.0
 google-auth-httplib2==0.1.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-cloud==0.34.0
 google-cloud-storage==1.42.0
diff --git a/healthcare/api-client/v1/hl7v2/requirements.txt b/healthcare/api-client/v1/hl7v2/requirements.txt
index c30012986f4..e6c7657159e 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==2.17.0
 google-auth-httplib2==0.1.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-cloud==0.34.0
diff --git a/healthcare/api-client/v1beta1/fhir/requirements.txt b/healthcare/api-client/v1beta1/fhir/requirements.txt
index 9d2dffac670..f995c6e2662 100644
--- a/healthcare/api-client/v1beta1/fhir/requirements.txt
+++ b/healthcare/api-client/v1beta1/fhir/requirements.txt
@@ -1,6 +1,6 @@
 google-api-python-client==2.17.0
 google-auth-httplib2==0.1.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-cloud==0.34.0
 google-cloud-storage==1.42.0
 requests==2.26.0
diff --git a/iam/api-client/requirements.txt b/iam/api-client/requirements.txt
index 767160786be..78837bd6f08 100644
--- a/iam/api-client/requirements.txt
+++ b/iam/api-client/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0
diff --git a/iap/requirements.txt b/iap/requirements.txt
index 6a468776a28..0b793e02b77 100644
--- a/iap/requirements.txt
+++ b/iap/requirements.txt
@@ -1,6 +1,6 @@
 cryptography==3.4.7
 Flask==2.0.1
-google-auth==1.31.0
+google-auth==2.0.0
 gunicorn==20.1.0
 requests==2.26.0
 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 3486f2a1594..ff11767d5f6 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==3.4.7
 google-api-python-client==2.17.0
 google-auth-httplib2==0.1.0
-google-auth==1.31.0
-google-cloud-pubsub==2.7.0
+google-auth==2.0.0
+google-cloud-pubsub==2.7.1
 pyjwt==2.1.0
 paho-mqtt==1.5.1
diff --git a/iot/api-client/gcs_file_to_device/requirements.txt b/iot/api-client/gcs_file_to_device/requirements.txt
index c4ad9954d87..4bc165d1bec 100644
--- a/iot/api-client/gcs_file_to_device/requirements.txt
+++ b/iot/api-client/gcs_file_to_device/requirements.txt
@@ -1,8 +1,8 @@
 google-api-python-client==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0
 google-cloud-iot==2.2.1
-google-cloud-pubsub==2.7.0
+google-cloud-pubsub==2.7.1
 google-cloud-storage==1.42.0
 cryptography==3.4.7
 paho-mqtt==1.5.1
diff --git a/iot/api-client/http_example/requirements.txt b/iot/api-client/http_example/requirements.txt
index 092faf86872..52c397b01dd 100644
--- a/iot/api-client/http_example/requirements.txt
+++ b/iot/api-client/http_example/requirements.txt
@@ -1,8 +1,8 @@
 cryptography==3.4.7
 google-api-python-client==2.17.0
 google-auth-httplib2==0.1.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-cloud-iot==2.2.1
-google-cloud-pubsub==2.7.0
+google-cloud-pubsub==2.7.1
 pyjwt==2.1.0
 requests==2.26.0
diff --git a/iot/api-client/mqtt_example/requirements.txt b/iot/api-client/mqtt_example/requirements.txt
index da30e1fa879..bcd6662088e 100644
--- a/iot/api-client/mqtt_example/requirements.txt
+++ b/iot/api-client/mqtt_example/requirements.txt
@@ -1,8 +1,8 @@
 cryptography==3.4.7
 google-api-python-client==2.17.0
 google-auth-httplib2==0.1.0
-google-auth==1.31.0
-google-cloud-pubsub==2.7.0
+google-auth==2.0.0
+google-cloud-pubsub==2.7.1
 google-cloud-iot==2.2.1
 grpc-google-iam-v1==0.12.3
 pyjwt==2.1.0
diff --git a/jobs/v3/api_client/requirements.txt b/jobs/v3/api_client/requirements.txt
index 767160786be..78837bd6f08 100755
--- a/jobs/v3/api_client/requirements.txt
+++ b/jobs/v3/api_client/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0
diff --git a/kubernetes_engine/api-client/requirements.txt b/kubernetes_engine/api-client/requirements.txt
index 767160786be..78837bd6f08 100644
--- a/kubernetes_engine/api-client/requirements.txt
+++ b/kubernetes_engine/api-client/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0
diff --git a/ml_engine/online_prediction/requirements.txt b/ml_engine/online_prediction/requirements.txt
index 9e7bc40ba7e..c6dacafa586 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==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0
diff --git a/monitoring/api/v3/api-client/requirements.txt b/monitoring/api/v3/api-client/requirements.txt
index 767160786be..78837bd6f08 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==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0
diff --git a/monitoring/opencensus/requirements.txt b/monitoring/opencensus/requirements.txt
index c3a735aeac7..3d27826767d 100644
--- a/monitoring/opencensus/requirements.txt
+++ b/monitoring/opencensus/requirements.txt
@@ -2,7 +2,7 @@ Flask==2.0.1
 # Update this to a >2 once opencensus allows newer versions:
 # https://github.com/census-instrumentation/opencensus-python/pull/1066
 google-api-core==1.31.2
-google-auth==1.31.0
+google-auth==1.35.0
 googleapis-common-protos==1.53.0
 opencensus==0.7.13
 opencensus-context==0.1.2
diff --git a/monitoring/prometheus/requirements.txt b/monitoring/prometheus/requirements.txt
index e05124c4324..af9026322a6 100644
--- a/monitoring/prometheus/requirements.txt
+++ b/monitoring/prometheus/requirements.txt
@@ -1,6 +1,6 @@
 Flask==2.0.1
 google-api-core==2.0.0
-google-auth==1.31.0
+google-auth==2.0.0
 googleapis-common-protos==1.53.0
 prometheus-client==0.11.0
 prometheus-flask-exporter==0.18.2
diff --git a/run/markdown-preview/editor/requirements.txt b/run/markdown-preview/editor/requirements.txt
index 14bd7c6d2df..35dc9b99126 100644
--- a/run/markdown-preview/editor/requirements.txt
+++ b/run/markdown-preview/editor/requirements.txt
@@ -1,4 +1,4 @@
 Flask==2.0.1
 gunicorn==20.1.0
-google-auth==1.31.0
+google-auth==2.0.0
 requests==2.26.0
diff --git a/run/markdown-preview/requirements-test.txt b/run/markdown-preview/requirements-test.txt
index 9fd9be1c1c7..e005580c1b9 100644
--- a/run/markdown-preview/requirements-test.txt
+++ b/run/markdown-preview/requirements-test.txt
@@ -1,3 +1,3 @@
 pytest==6.2.4
-google-auth==1.31.0
+google-auth==2.0.0
 google-api-python-client==2.17.0
diff --git a/storage/api/requirements.txt b/storage/api/requirements.txt
index 767160786be..78837bd6f08 100644
--- a/storage/api/requirements.txt
+++ b/storage/api/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0
diff --git a/storage/signed_urls/requirements.txt b/storage/signed_urls/requirements.txt
index 2316874da61..f4674062d44 100644
--- a/storage/signed_urls/requirements.txt
+++ b/storage/signed_urls/requirements.txt
@@ -1,3 +1,3 @@
 google-cloud-storage==1.42.0
-google-auth==1.31.0
+google-auth==2.0.0
 six==1.16.0
diff --git a/storage/transfer_service/requirements.txt b/storage/transfer_service/requirements.txt
index 767160786be..78837bd6f08 100644
--- a/storage/transfer_service/requirements.txt
+++ b/storage/transfer_service/requirements.txt
@@ -1,3 +1,3 @@
 google-api-python-client==2.17.0
-google-auth==1.31.0
+google-auth==2.0.0
 google-auth-httplib2==0.1.0