diff --git a/CHANGELOG.md b/CHANGELOG.md
index db0b6df..1acb735 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # CHANGELOG
 
+## [1.9.1](https://github.com/StableAgOH/lscontests/compare/v1.9.0...v1.9.1) (2022-05-13)
+
+
+### Performance Improvements
+
+* add language for northeastern-china ([bb715fb](https://github.com/StableAgOH/lscontests/commit/bb715fbe34cf799a99f8f27ede174f403b735b05))
+
 # [1.9.0](https://github.com/StableAgOH/lscontests/compare/v1.8.13...v1.9.0) (2022-05-13)
 
 
diff --git a/README.md b/README.md
index 115c323..bfb6ce1 100644
--- a/README.md
+++ b/README.md
@@ -40,8 +40,8 @@ Options:
   -l, --list             list all supported OJ and it's abbreviation
   -o, --oj <ojs...>      OJs to display (choices: "at", "cf", "lg", "nc")
   -r, --raw              print raw contest list
-  -L, --language <lang>  set output language (choices: "en", "zh-CN", "zh-TW",
-                         default: "zh-CN")
+  -L, --language <lang>  set output language (choices: "en", "zh-CN", "zh-NE",
+                         "zh-TW", default: "zh-CN")
   --no-sort              do not sort by contests start time, but by OJ order
   -h, --help             display help for command
 ```
@@ -50,7 +50,7 @@ Options:
 It performs as follows:
 
 <!-- block_cli begin -->
-(*The following content was automatically generated in Fri, 13 May 2022 15:28:45 GMT*)
+(*The following content was automatically generated in Fri, 13 May 2022 15:42:43 GMT*)
 
 <details>
 <summary> <code>> lsct </code> </summary>
diff --git a/package.json b/package.json
index 65d5c73..72cb71d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lscontests",
-  "version": "1.9.0",
+  "version": "1.9.1",
   "description": "A tool to get information about the contests on each OJ",
   "keywords": [
     "cli",