diff --git a/components/mobile/profile/ThemeSessionBridge.tsx b/components/mobile/profile/ThemeSessionBridge.tsx
index 0acc135..5e5b3c4 100644
--- a/components/mobile/profile/ThemeSessionBridge.tsx
+++ b/components/mobile/profile/ThemeSessionBridge.tsx
@@ -32,7 +32,14 @@ export function ThemeSessionBridge() {
         setTheme(serverTheme);
       }
     }
-  }, [session?.user, theme, setTheme]);
+    // Deps intentionally exclude `theme`. This bridge syncs server → client
+    // on session establishment only. Including `theme` made the effect re-fire
+    // on every user selection and revert to the stale cached
+    // `session.user.theme` (the PUT to /api/me/theme does not refresh the
+    // better-auth session, so user.theme remains the pre-change value and
+    // "wins" against the new client value).
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [session?.user?.id, setTheme]);
 
   return null;
 }