diff --git a/default.json b/default.json
index 604ac10..776e115 100644
--- a/default.json
+++ b/default.json
@@ -11,5 +11,6 @@
       "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
       "automerge": true
     }
-  ]
+  ],
+  "branchPrefix": "renovate_"
 }