diff --git a/tests/test_gcloud/testbench/requirements.txt b/tests/test_gcloud/testbench/requirements.txt
index 415ce8662..81611e650 100644
--- a/tests/test_gcloud/testbench/requirements.txt
+++ b/tests/test_gcloud/testbench/requirements.txt
@@ -1,5 +1,5 @@
 crc32c==2.1
-flask==1.1.2
+flask==2.3.2
 greenlet==0.4.17
 gevent==20.9.0
 gunicorn==20.0.4