diff --git a/package.json b/package.json
index 0c3fe04..60df2b1 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
         "eslint": "^3.11.1",
         "eslint-plugin-flowtype": "^2.29.1",
         "eslint-plugin-import": "^2.2.0",
-        "flow-bin": "^0.47.0",
+        "flow-bin": "^0.49.1",
         "flow-copy-source": "^1.1.0",
         "ghooks": "^2.0.0",
         "jest-cli": "^20.0.0",