diff --git a/requirements.txt b/requirements.txt
index e6ca26f..4c4cbcc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,6 @@ WTForms==2.2.1
 Flask_WTF==0.14.2
 pymongo==3.7.2
 Flask_PyMongo==2.2.0
-Flask==1.0.2
+Flask==2.3.2
 dnspython==1.16.0
 werkzeug==0.16.1