diff --git a/CHANGELOG.md b/CHANGELOG.md
index f5986f6..c9ec365 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # CHANGELOG
 
+## [2.5.2](https://github.com/StableAgOH/lscontests/compare/v2.5.1...v2.5.2) (2022-06-30)
+
+
+### Performance Improvements
+
+* prevent duplicate cache refresh ([6cfee2f](https://github.com/StableAgOH/lscontests/commit/6cfee2f7b32e4f421ed36475957a1f5a37c32269))
+
 ## [2.5.1](https://github.com/StableAgOH/lscontests/compare/v2.5.0...v2.5.1) (2022-06-30)
 
 
diff --git a/README-zh-CN.md b/README-zh-CN.md
index 3742ee2..4742fd1 100644
--- a/README-zh-CN.md
+++ b/README-zh-CN.md
@@ -56,7 +56,7 @@ Options:
 来欣赏一下它的表演：
 
 <!-- block_cli begin -->
-（*以下内容是使用 [semantic-release](https://github.com/semantic-release/semantic-release) 于 Thu, 30 Jun 2022 08:32:55 GMT 自动生成的*）
+（*以下内容是使用 [semantic-release](https://github.com/semantic-release/semantic-release) 于 Thu, 30 Jun 2022 09:00:35 GMT 自动生成的*）
 
 <details>
 <summary> <code>> lsct </code> </summary>
diff --git a/README-zh-NE.md b/README-zh-NE.md
index fa62d01..5302bbb 100644
--- a/README-zh-NE.md
+++ b/README-zh-NE.md
@@ -56,7 +56,7 @@ Options:
 多少整几个活：
 
 <!-- block_cli begin -->
-（*下面这些是高 [semantic-release](https://github.com/semantic-release/semantic-release) 搁 Thu, 30 Jun 2022 08:32:59 GMT 自个生成的*）
+（*下面这些是高 [semantic-release](https://github.com/semantic-release/semantic-release) 搁 Thu, 30 Jun 2022 09:00:39 GMT 自个生成的*）
 
 <details>
 <summary> <code>> lsct -L zh-NE</code> </summary>
diff --git a/README.md b/README.md
index b0508fe..cd509af 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ Options:
 It performs as follows:
 
 <!-- block_cli begin -->
-(*The following content was automatically generated using [semantic-release](https://github.com/semantic-release/semantic-release) on Thu, 30 Jun 2022 08:32:50 GMT*)
+(*The following content was automatically generated using [semantic-release](https://github.com/semantic-release/semantic-release) on Thu, 30 Jun 2022 09:00:29 GMT*)
 
 <details>
 <summary> <code>> lsct -L en</code> </summary>
diff --git a/package.json b/package.json
index 224e9c5..83be97e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lscontests",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "description": "A tool to get information about the contests on each OJ",
   "keywords": [
     "cli",