diff --git a/package.json b/package.json
index ebe1a83..31c67d7 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "bn.js": "^4.11.0",
     "buffer-reverse": "^1.0.1",
     "inherits": "^2.0.1",
-    "object-assign": "^4.1.0",
+    "object-assign": "^4.1.1",
     "repeat-string": "^1.5.4"
   },
   "devDependencies": {