diff --git a/CHANGELOG.md b/CHANGELOG.md
index 411d181..f549a68 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 
 # CHANGELOG
 
+## 2.7.1 (2016-02-22)
+
+* fix(web): use strict. #82
+
 ## 2.7.0 (2016-02-04)
 
 * feat(TO3NE): TONE style by number [0-4] after phonetic notation character. #79
diff --git a/package.json b/package.json
index 75a75cf..98b1aa5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pinyin",
-  "version": "2.7.0",
+  "version": "2.7.1",
   "description": "汉语拼音转换工具。",
   "files": [
     "bin",