diff --git a/package.json b/package.json
index b068ce7aee..231b143315 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "eslint": "^3.7.1",
     "eslint-config-babel": "^6.0.0",
     "eslint-plugin-flowtype": "^2.20.0",
-    "flow-bin": "^0.38.0",
+    "flow-bin": "^0.40.0",
     "nyc": "^10.0.0",
     "rimraf": "^2.5.4",
     "rollup": "^0.41.0",