diff --git a/requirements.txt b/requirements.txt
index 1ecb48a..26d708c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ google-api-python-client==1.7.11
 google-auth==1.10.0
 google-auth-httplib2==0.0.3
 google-auth-oauthlib==0.4.1
-flask==1.1.1
+flask==2.3.2
 Werkzeug>=1.0.1
 Flask-SQLAlchemy==2.4.0
 Flask-Migrate==2.5.2