diff --git a/appengine/standard_python3/warmup/requirements.txt b/appengine/standard_python3/warmup/requirements.txt
index aba55f1608f..fcf7cd2dba3 100644
--- a/appengine/standard_python3/warmup/requirements.txt
+++ b/appengine/standard_python3/warmup/requirements.txt
@@ -1 +1 @@
-flask==2.1.0
+flask==2.3.2