diff --git a/src/govoplan_access/backend/api/v1/auth.py b/src/govoplan_access/backend/api/v1/auth.py
index 7708d03..7ce24ce 100644
--- a/src/govoplan_access/backend/api/v1/auth.py
+++ b/src/govoplan_access/backend/api/v1/auth.py
@@ -996,7 +996,7 @@ def update_profile(
                 and payload.ui_preferences.navigation.locked
             ):
                 raise HTTPException(
-                    status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
+                    status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
                     detail="Personal navigation preferences cannot lock entries.",
                 )
             next_ui = _user_ui_preferences(next_settings).model_dump()