diff --git a/requirements.txt b/requirements.txt
index aa79cb0..bda3a29 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Flask==0.9
+Flask==2.2.5
 Jinja2==2.6
 Werkzeug==0.8.3
 argparse==1.2.1