diff --git a/iap/app_engine_app/requirements.txt b/iap/app_engine_app/requirements.txt
index f306f93a9ca..14a1e5a4dbe 100644
--- a/iap/app_engine_app/requirements.txt
+++ b/iap/app_engine_app/requirements.txt
@@ -1,2 +1,2 @@
 Flask==3.0.3
-Werkzeug==3.0.3
+Werkzeug==3.1.5
diff --git a/iap/requirements.txt b/iap/requirements.txt
index d173e46ab20..11054fce335 100644
--- a/iap/requirements.txt
+++ b/iap/requirements.txt
@@ -4,6 +4,6 @@ google-auth==2.19.1
 gunicorn==22.0.0
 requests==2.32.2
 requests-toolbelt==1.0.0
-Werkzeug==3.0.3
+Werkzeug==3.1.5
 google-cloud-iam~=2.3.0
 PyJWT~=2.8.0
\ No newline at end of file