diff --git a/requirements-server.txt b/requirements-server.txt
index 719791256c..fc732f489d 100644
--- a/requirements-server.txt
+++ b/requirements-server.txt
@@ -1,5 +1,5 @@
 connexion[swagger-ui]>=2.10.0, <3
-flask>=2.0,<3
+flask>=2.0,<4
 werkzeug>=2.0,<4
 flask-cors==5.0.0
 gunicorn==23.0.0