diff --git a/CHANGELOG.md b/CHANGELOG.md
index af4b4a494..b02872296 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,13 @@
 
 -------------------------------------------------------------------------------------------------------------
 
+## 5.2.1
+
+### 新特性
+### Bug修复
+
+-------------------------------------------------------------------------------------------------------------
+
 ## 5.2.0
 
 ### 新特性
diff --git a/README.md b/README.md
index 986ef43dc..4841c12e6 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@
 	-- 主页：<a href="https://hutool.cn">https://hutool.cn/</a> | <a href="https://www.hutool.club/">https://www.hutool.club/</a> --
 </p>
 <p align="center">
-	-- QQ群③：<a href="https://shang.qq.com/wpa/qunwpa?idkey=35764b2247c46ffebe28e45.2.0b2af8f5dee5efcf47ceec69d21e4521aa8c75">555368316</a> --
+	-- QQ群③：<a href="https://shang.qq.com/wpa/qunwpa?idkey=35764b2247c46ffebe28e45.2.1b2af8f5dee5efcf47ceec69d21e4521aa8c75">555368316</a> --
 	-- QQ群④：<a href="https://shang.qq.com/wpa/qunwpa?idkey=309056e409a304a454c7ba250a10d38dd82b9b49cd0e1f180fedbde78b02ae0d">718802356</a> --
 </p>
 
@@ -116,21 +116,21 @@ Hutool的存在就是为了减少代码搜索成本，避免网络上参差不
 <dependency>
     <groupId>cn.hutool</groupId>
     <artifactId>hutool-all</artifactId>
-    <version>5.2.0</version>
+    <version>5.2.1</version>
 </dependency>
 ```
 
 ### Gradle
 ```
-compile 'cn.hutool:hutool-all:5.2.0'
+compile 'cn.hutool:hutool-all:5.2.1'
 ```
 
 ### 非Maven项目
 
 点击以下任一链接，下载`hutool-all-X.X.X.jar`即可：
 
-- [Maven中央库1](https://repo1.maven.org/maven2/cn/hutool/hutool-all/5.2.0/)
-- [Maven中央库2](http://repo2.maven.org/maven2/cn/hutool/hutool-all/5.2.0/)
+- [Maven中央库1](https://repo1.maven.org/maven2/cn/hutool/hutool-all/5.2.1/)
+- [Maven中央库2](http://repo2.maven.org/maven2/cn/hutool/hutool-all/5.2.1/)
 
 > 注意
 > Hutool 5.x支持JDK8+，对Android平台没有测试，不能保证所有工具类获工具方法可用。
diff --git a/bin/version.txt b/bin/version.txt
index 91ff57278..26d99a283 100755
--- a/bin/version.txt
+++ b/bin/version.txt
@@ -1 +1 @@
-5.2.0
+5.2.1
diff --git a/docs/js/version.js b/docs/js/version.js
index 6edc874ca..3b5a3b095 100644
--- a/docs/js/version.js
+++ b/docs/js/version.js
@@ -1 +1 @@
-var version = '5.2.0'
\ No newline at end of file
+var version = '5.2.1'
\ No newline at end of file
diff --git a/hutool-all/pom.xml b/hutool-all/pom.xml
index f5de010d1..55542972d 100644
--- a/hutool-all/pom.xml
+++ b/hutool-all/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-all</artifactId>
diff --git a/hutool-aop/pom.xml b/hutool-aop/pom.xml
index f8e2d47aa..7f7e8953a 100644
--- a/hutool-aop/pom.xml
+++ b/hutool-aop/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-aop</artifactId>
diff --git a/hutool-bloomFilter/pom.xml b/hutool-bloomFilter/pom.xml
index ee14163e3..0f189bc65 100644
--- a/hutool-bloomFilter/pom.xml
+++ b/hutool-bloomFilter/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-bloomFilter</artifactId>
diff --git a/hutool-bom/pom.xml b/hutool-bom/pom.xml
index 4c98e2e57..29dfd187f 100644
--- a/hutool-bom/pom.xml
+++ b/hutool-bom/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-bom</artifactId>
diff --git a/hutool-cache/pom.xml b/hutool-cache/pom.xml
index b00cd71ea..945d63a12 100644
--- a/hutool-cache/pom.xml
+++ b/hutool-cache/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-cache</artifactId>
diff --git a/hutool-captcha/pom.xml b/hutool-captcha/pom.xml
index df829414a..a058ab067 100644
--- a/hutool-captcha/pom.xml
+++ b/hutool-captcha/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-captcha</artifactId>
diff --git a/hutool-core/pom.xml b/hutool-core/pom.xml
index 03fdb1280..1cafa5e88 100644
--- a/hutool-core/pom.xml
+++ b/hutool-core/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-core</artifactId>
diff --git a/hutool-cron/pom.xml b/hutool-cron/pom.xml
index 99b615487..02d1b23c5 100644
--- a/hutool-cron/pom.xml
+++ b/hutool-cron/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-cron</artifactId>
diff --git a/hutool-crypto/pom.xml b/hutool-crypto/pom.xml
index 04d54a35a..be62713a9 100644
--- a/hutool-crypto/pom.xml
+++ b/hutool-crypto/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-crypto</artifactId>
diff --git a/hutool-db/pom.xml b/hutool-db/pom.xml
index 164a59ef7..186a2ddca 100644
--- a/hutool-db/pom.xml
+++ b/hutool-db/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-db</artifactId>
diff --git a/hutool-dfa/pom.xml b/hutool-dfa/pom.xml
index e84086369..2ad6b156d 100644
--- a/hutool-dfa/pom.xml
+++ b/hutool-dfa/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-dfa</artifactId>
diff --git a/hutool-extra/pom.xml b/hutool-extra/pom.xml
index 8e8110475..a5ba02ecd 100644
--- a/hutool-extra/pom.xml
+++ b/hutool-extra/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-extra</artifactId>
diff --git a/hutool-http/pom.xml b/hutool-http/pom.xml
index ccd45642f..f43f1b17d 100644
--- a/hutool-http/pom.xml
+++ b/hutool-http/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-http</artifactId>
diff --git a/hutool-json/pom.xml b/hutool-json/pom.xml
index ad37364f1..ab8087dd1 100644
--- a/hutool-json/pom.xml
+++ b/hutool-json/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-json</artifactId>
diff --git a/hutool-log/pom.xml b/hutool-log/pom.xml
index 9710e2d91..ff6a289b6 100644
--- a/hutool-log/pom.xml
+++ b/hutool-log/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-log</artifactId>
diff --git a/hutool-poi/pom.xml b/hutool-poi/pom.xml
index d9f539192..f4a229cf3 100644
--- a/hutool-poi/pom.xml
+++ b/hutool-poi/pom.xml
@@ -8,7 +8,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-poi</artifactId>
diff --git a/hutool-script/pom.xml b/hutool-script/pom.xml
index 6de7d61fb..35613caf1 100644
--- a/hutool-script/pom.xml
+++ b/hutool-script/pom.xml
@@ -7,7 +7,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-script</artifactId>
diff --git a/hutool-setting/pom.xml b/hutool-setting/pom.xml
index 40fe7dce3..10dfc673b 100644
--- a/hutool-setting/pom.xml
+++ b/hutool-setting/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-setting</artifactId>
diff --git a/hutool-socket/pom.xml b/hutool-socket/pom.xml
index 77e0f4b1a..ec2828eb5 100644
--- a/hutool-socket/pom.xml
+++ b/hutool-socket/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-socket</artifactId>
diff --git a/hutool-system/pom.xml b/hutool-system/pom.xml
index acc645c60..18aee7088 100644
--- a/hutool-system/pom.xml
+++ b/hutool-system/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.2.0</version>
+		<version>5.2.1-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-system</artifactId>
diff --git a/pom.xml b/pom.xml
index 1f83acf93..8b908f58f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,7 +8,7 @@
 
 	<groupId>cn.hutool</groupId>
 	<artifactId>hutool-parent</artifactId>
-	<version>5.2.0</version>
+	<version>5.2.1-SNAPSHOT</version>
 	<name>hutool</name>
 	<description>提供丰富的Java工具方法</description>
 	<url>https://github.com/looly/hutool</url>