diff --git a/app.py b/app.py
index 940f43c..25abc8a 100644
--- a/app.py
+++ b/app.py
@@ -106,6 +106,7 @@ if effective_headers:
 
     talisman = Talisman(
         app,
+        vary=False,
         session_cookie_secure=app.config.get("SESSION_COOKIE_SECURE", True),
         **talisman_kwargs,
     )