diff --git a/cloud-sql/sql-server/sqlalchemy/requirements.txt b/cloud-sql/sql-server/sqlalchemy/requirements.txt
index 3302326ab42..5618d32f0d3 100644
--- a/cloud-sql/sql-server/sqlalchemy/requirements.txt
+++ b/cloud-sql/sql-server/sqlalchemy/requirements.txt
@@ -1,4 +1,4 @@
-Flask==2.2.2
+Flask==3.1.3
 gunicorn==23.0.0
 python-tds==1.16.0
 pyopenssl==25.0.0