diff --git a/History.md b/History.md
index 4db0b0c..1af12a4 100644
--- a/History.md
+++ b/History.md
@@ -1,4 +1,9 @@
 
+1.5.1 / 2016-05-21
+==================
+
+  * deps: humanize-ms@1.2.0, use ^ (#22)
+
 1.5.0 / 2016-03-16
 ==================
 
diff --git a/package.json b/package.json
index e4d6f5d..4d291f5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "koa-locales",
-  "version": "1.5.0",
+  "version": "1.5.1",
   "description": "koa locales, i18n solution for koa",
   "main": "index.js",
   "files": [