diff --git a/app.py b/app.py
index 0666c81d..6b2b12e9 100644
--- a/app.py
+++ b/app.py
@@ -153,6 +153,7 @@ def load_admin_setting() -> Dict[str, Any]:
 
 # CSRF protection.
 csrf = CSRFProtect(app)
+app.config['WTF_CSRF_TIME_LIMIT'] = None  # Set CSRF token lifetime tied to the life of the session.
 
 
 @app.before_request