diff --git a/package.json b/package.json
index 75b39f330c3288e094020abe52401f2fed5640c1..4e0b7cf316f941a01714180469acffd7b68a981e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ucoin",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "private": false,
   "description": "Crypto-currency software using Node.js",
   "main": "bin/ucoin",