diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5dcbd7d6c..779271f60 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,14 +3,6 @@
 
 -------------------------------------------------------------------------------------------------------------
 
-# 5.5.2 (2020-11-16)
-
-### 新特性
-
-### Bug修复
-
--------------------------------------------------------------------------------------------------------------
-
 # 5.5.1 (2020-11-16)
 
 ### 新特性
diff --git a/README-EN.md b/README-EN.md
index 56253c825..0f1c0da29 100644
--- a/README-EN.md
+++ b/README-EN.md
@@ -125,19 +125,19 @@ Each module can be introduced individually, or all modules can be introduced by
 <dependency>
     <groupId>cn.hutool</groupId>
     <artifactId>hutool-all</artifactId>
-    <version>5.5.2</version>
+    <version>5.5.1</version>
 </dependency>
 ```
 
 ### Gradle
 ```
-compile 'cn.hutool:hutool-all:5.5.2'
+compile 'cn.hutool:hutool-all:5.5.1'
 ```
 
 ## Download
 
-- [Maven1](https://repo1.maven.org/maven2/cn/hutool/hutool-all/5.5.2/)
-- [Maven2](http://repo2.maven.org/maven2/cn/hutool/hutool-all/5.5.2/)
+- [Maven1](https://repo1.maven.org/maven2/cn/hutool/hutool-all/5.5.1/)
+- [Maven2](http://repo2.maven.org/maven2/cn/hutool/hutool-all/5.5.1/)
 
 > note:
 > Hutool 5.x supports JDK8+ and is not tested on Android platforms, and cannot guarantee that all tool classes or tool methods are available.
diff --git a/README.md b/README.md
index f348e48f3..04316f385 100644
--- a/README.md
+++ b/README.md
@@ -123,21 +123,21 @@ 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>5.5.2</version>
+    <version>5.5.1</version>
 </dependency>
 ```
 
 ### Gradle
 ```
-compile 'cn.hutool:hutool-all:5.5.2'
+compile 'cn.hutool:hutool-all:5.5.1'
 ```
 
 ### 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/5.5.2/)
-- [Maven中央库2](http://repo2.maven.org/maven2/cn/hutool/hutool-all/5.5.2/)
+- [Maven中央库1](https://repo1.maven.org/maven2/cn/hutool/hutool-all/5.5.1/)
+- [Maven中央库2](http://repo2.maven.org/maven2/cn/hutool/hutool-all/5.5.1/)
 
 > 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或工具方法可用。
diff --git a/bin/version.txt b/bin/version.txt
index e4d41db98..7acd1cb0e 100755
--- a/bin/version.txt
+++ b/bin/version.txt
@@ -1 +1 @@
-5.5.2
+5.5.1
diff --git a/docs/js/version.js b/docs/js/version.js
index 352759200..02594b515 100644
--- a/docs/js/version.js
+++ b/docs/js/version.js
@@ -1 +1 @@
-var version = '5.5.2'
\ No newline at end of file
+var version = '5.5.1'
\ No newline at end of file
diff --git a/hutool-all/pom.xml b/hutool-all/pom.xml
index 4e5037e23..24ae74f35 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-all</artifactId>
diff --git a/hutool-aop/pom.xml b/hutool-aop/pom.xml
index 1aad8de37..7c0995244 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-aop</artifactId>
diff --git a/hutool-bloomFilter/pom.xml b/hutool-bloomFilter/pom.xml
index 9a22c2e8d..1889b0f42 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-bloomFilter</artifactId>
diff --git a/hutool-bom/pom.xml b/hutool-bom/pom.xml
index 1bb69eef8..8f5030aa1 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-bom</artifactId>
diff --git a/hutool-cache/pom.xml b/hutool-cache/pom.xml
index 84e9b2db6..06a9fc80f 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-cache</artifactId>
diff --git a/hutool-captcha/pom.xml b/hutool-captcha/pom.xml
index b8a0a80de..8705d0d31 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-captcha</artifactId>
diff --git a/hutool-core/pom.xml b/hutool-core/pom.xml
index ca77d8222..c1ce70083 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-core</artifactId>
diff --git a/hutool-cron/pom.xml b/hutool-cron/pom.xml
index f072c2e29..ef65a172e 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-cron</artifactId>
diff --git a/hutool-crypto/pom.xml b/hutool-crypto/pom.xml
index 51db31c7c..a32a81d18 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-crypto</artifactId>
diff --git a/hutool-db/pom.xml b/hutool-db/pom.xml
index 8dc8a3d3b..0189f3266 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-db</artifactId>
diff --git a/hutool-dfa/pom.xml b/hutool-dfa/pom.xml
index 478adc711..eb9545f12 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-dfa</artifactId>
diff --git a/hutool-extra/pom.xml b/hutool-extra/pom.xml
index 395140b56..b10aac6ff 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-extra</artifactId>
diff --git a/hutool-http/pom.xml b/hutool-http/pom.xml
index b7aaf9361..6cac98afc 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-http</artifactId>
diff --git a/hutool-json/pom.xml b/hutool-json/pom.xml
index b35254b3c..2a73a1700 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-json</artifactId>
diff --git a/hutool-log/pom.xml b/hutool-log/pom.xml
index ab1b9602e..6d029831c 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-log</artifactId>
diff --git a/hutool-poi/pom.xml b/hutool-poi/pom.xml
index da3400233..d81fb8c68 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-poi</artifactId>
diff --git a/hutool-script/pom.xml b/hutool-script/pom.xml
index 4c0eb861a..f6f152482 100644
--- a/hutool-script/pom.xml
+++ b/hutool-script/pom.xml
@@ -8,7 +8,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-script</artifactId>
diff --git a/hutool-setting/pom.xml b/hutool-setting/pom.xml
index a53723268..3710e3e35 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-setting</artifactId>
diff --git a/hutool-socket/pom.xml b/hutool-socket/pom.xml
index d4ec41163..a8f1c3dec 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-socket</artifactId>
diff --git a/hutool-system/pom.xml b/hutool-system/pom.xml
index 7f6e72a0c..7c2491968 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>5.5.2-SNAPSHOT</version>
+		<version>5.5.1</version>
 	</parent>
 
 	<artifactId>hutool-system</artifactId>
diff --git a/pom.xml b/pom.xml
index 37edd0174..60240bf83 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,7 +8,7 @@
 
 	<groupId>cn.hutool</groupId>
 	<artifactId>hutool-parent</artifactId>
-	<version>5.5.2-SNAPSHOT</version>
+	<version>5.5.1</version>
 	<name>hutool</name>
 	<description>Hutool是一个小而全的Java工具类库，通过静态方法封装，降低相关API的学习成本，提高工作效率，使Java拥有函数式语言般的优雅，让Java语言也可以“甜甜的”。</description>
 	<url>https://github.com/looly/hutool</url>