diff --git a/tests/apps/multi/requirements.txt b/tests/apps/multi/requirements.txt
index 9ea9c8a93..d907d9263 100644
--- a/tests/apps/multi/requirements.txt
+++ b/tests/apps/multi/requirements.txt
@@ -1,2 +1,2 @@
-Flask==3.0.3
+Flask==3.1.0
 gunicorn==23.0.0