diff --git a/app/requirements.txt b/app/requirements.txt
index 64276d5..b1e2ca3 100644
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -2,7 +2,7 @@ gunicorn
 pyyaml
 
 # flask v2 breaks the regex handling in application.route
-flask==1.1.4
+flask==2.3.2
 
 # Force downgrade of markupsafe (alt is to force downgrade of jinja2 -- last version used was 2.10.3)
 markupsafe==2.0.1