diff --git a/src/ui/main.py b/src/ui/main.py
index f161ce717..ff38bd082 100644
--- a/src/ui/main.py
+++ b/src/ui/main.py
@@ -80,6 +80,7 @@ with app.app_context():
     app.config["SESSION_COOKIE_NAME"] = "__Host-bw_ui_session"
     app.config["SESSION_COOKIE_PATH"] = "/"
     app.config["SESSION_COOKIE_SECURE"] = True
+    app.config["SESSION_COOKIE_PARTITIONED"] = True
     app.config["SESSION_COOKIE_HTTPONLY"] = True
     app.config["SESSION_COOKIE_SAMESITE"] = "Lax"