diff --git a/examples/using-mobx/package.json b/examples/using-mobx/package.json
index 599cd1363aa62..4a77bed964905 100644
--- a/examples/using-mobx/package.json
+++ b/examples/using-mobx/package.json
@@ -16,7 +16,7 @@
   ],
   "license": "MIT",
   "dependencies": {
-    "gatsby": "^2.24.63",
+    "gatsby": "^3.13.0",
     "mobx": "^5.15.7",
     "mobx-react": "^6.3.0",
     "prop-types": "^15.7.2",