diff --git a/package.json b/package.json
index 3e0d140..a938bc9 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "babel-preset-es2015": "^6.24.1",
     "babel-preset-flow": "^6.23.0",
     "eslint": "^4.0.0",
-    "flow-bin": "^0.48.0",
+    "flow-bin": "^0.54.0",
     "random-words": "0.0.1",
     "rlp": "^2.0.0",
     "tape": "^4.6.3"