diff --git a/CHANGELOG.md b/CHANGELOG.md
index df97fc9c3..f528a27a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,12 @@
 # 🚀Changelog
 
 -------------------------------------------------------------------------------------------------------------
+# 5.7.21 (2022-01-20)
 
+### 🐣新特性
+### 🐞Bug修复
+
+-------------------------------------------------------------------------------------------------------------
 # 5.7.20 (2022-01-20)
 
 ### 🐣新特性
diff --git a/README-EN.md b/README-EN.md
index b55c1128d..f7a5da2d2 100644
--- a/README-EN.md
+++ b/README-EN.md
@@ -142,18 +142,18 @@ We provide the T-Shirt and Sweater with Hutool Logo, please visit the shop：
 <dependency>
     <groupId>cn.hutool</groupId>
     <artifactId>hutool-all</artifactId>
-    <version>5.7.20</version>
+    <version>5.7.21</version>
 </dependency>
 ```
 
 ### 🍐Gradle
 ```
-implementation 'cn.hutool:hutool-all:5.7.20'
+implementation 'cn.hutool:hutool-all:5.7.21'
 ```
 
 ## 📥Download
 
-- [Maven Repo](https://repo1.maven.org/maven2/cn/hutool/hutool-all/5.7.20/)
+- [Maven Repo](https://repo1.maven.org/maven2/cn/hutool/hutool-all/5.7.21/)
 
 > 🔔️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 8aeb70262..a4ef14c1f 100644
--- a/README.md
+++ b/README.md
@@ -142,20 +142,20 @@ 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>5.7.20</version>
+    <version>5.7.21</version>
 </dependency>
 ```
 
 ### 🍐Gradle
 ```
-implementation 'cn.hutool:hutool-all:5.7.20'
+implementation 'cn.hutool:hutool-all:5.7.21'
 ```
 
 ### 📥下载jar
 
 点击以下链接，下载`hutool-all-X.X.X.jar`即可：
 
-- [Maven中央库](https://repo1.maven.org/maven2/cn/hutool/hutool-all/5.7.20/)
+- [Maven中央库](https://repo1.maven.org/maven2/cn/hutool/hutool-all/5.7.21/)
 
 > 🔔️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 b0917fb0e..fcad0d34c 100755
--- a/bin/version.txt
+++ b/bin/version.txt
@@ -1 +1 @@
-5.7.20
+5.7.21
diff --git a/docs/js/version.js b/docs/js/version.js
index 978cfac6d..6bdf634cd 100644
--- a/docs/js/version.js
+++ b/docs/js/version.js
@@ -1 +1 @@
-var version = '5.7.20'
\ No newline at end of file
+var version = '5.7.21'
\ No newline at end of file
diff --git a/hutool-all/pom.xml b/hutool-all/pom.xml
index 511746da4..27f161685 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>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-all</artifactId>
diff --git a/hutool-aop/pom.xml b/hutool-aop/pom.xml
index 7ea45314f..94786ad48 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>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-aop</artifactId>
diff --git a/hutool-bloomFilter/pom.xml b/hutool-bloomFilter/pom.xml
index c8cdcd926..e6d5a8a92 100644
--- a/hutool-bloomFilter/pom.xml
+++ b/hutool-bloomFilter/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-bloomFilter</artifactId>
diff --git a/hutool-bom/pom.xml b/hutool-bom/pom.xml
index c3cee33b3..eb557d8b9 100644
--- a/hutool-bom/pom.xml
+++ b/hutool-bom/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-bom</artifactId>
diff --git a/hutool-cache/pom.xml b/hutool-cache/pom.xml
index 062080971..16b19f58b 100644
--- a/hutool-cache/pom.xml
+++ b/hutool-cache/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-cache</artifactId>
diff --git a/hutool-captcha/pom.xml b/hutool-captcha/pom.xml
index 45754904a..61d5e5eb0 100644
--- a/hutool-captcha/pom.xml
+++ b/hutool-captcha/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-captcha</artifactId>
diff --git a/hutool-core/pom.xml b/hutool-core/pom.xml
index 995d36026..3331f8bde 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>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-core</artifactId>
diff --git a/hutool-cron/pom.xml b/hutool-cron/pom.xml
index f0929496c..7f6b31ad6 100644
--- a/hutool-cron/pom.xml
+++ b/hutool-cron/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-cron</artifactId>
diff --git a/hutool-crypto/pom.xml b/hutool-crypto/pom.xml
index 7105bd7f5..2249e5391 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>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-crypto</artifactId>
diff --git a/hutool-db/pom.xml b/hutool-db/pom.xml
index 4d6d83222..f314f3191 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>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-db</artifactId>
diff --git a/hutool-dfa/pom.xml b/hutool-dfa/pom.xml
index 244b9c3fe..6416c6f74 100644
--- a/hutool-dfa/pom.xml
+++ b/hutool-dfa/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-dfa</artifactId>
diff --git a/hutool-extra/pom.xml b/hutool-extra/pom.xml
index 0a6a57284..15945e1ce 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>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-extra</artifactId>
diff --git a/hutool-http/pom.xml b/hutool-http/pom.xml
index b4a57da4c..0cff463c3 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>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-http</artifactId>
diff --git a/hutool-json/pom.xml b/hutool-json/pom.xml
index a41748fd4..03cbd5837 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>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-json</artifactId>
diff --git a/hutool-jwt/pom.xml b/hutool-jwt/pom.xml
index 549b5b819..328bca47f 100644
--- a/hutool-jwt/pom.xml
+++ b/hutool-jwt/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-jwt</artifactId>
diff --git a/hutool-log/pom.xml b/hutool-log/pom.xml
index ea661e721..db88952d7 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>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-log</artifactId>
diff --git a/hutool-poi/pom.xml b/hutool-poi/pom.xml
index 80d7ce519..4be7f3f50 100644
--- a/hutool-poi/pom.xml
+++ b/hutool-poi/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-poi</artifactId>
diff --git a/hutool-script/pom.xml b/hutool-script/pom.xml
index 7fa28a4f5..f1d4bcc68 100644
--- a/hutool-script/pom.xml
+++ b/hutool-script/pom.xml
@@ -9,7 +9,7 @@
 	<parent>
 		<groupId>cn.hutool</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-script</artifactId>
diff --git a/hutool-setting/pom.xml b/hutool-setting/pom.xml
index 7bd5fdce5..b9cd5073f 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>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-setting</artifactId>
diff --git a/hutool-socket/pom.xml b/hutool-socket/pom.xml
index d8d684dfe..11da40893 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>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-socket</artifactId>
diff --git a/hutool-system/pom.xml b/hutool-system/pom.xml
index 4105c3a27..ec3f296fc 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>5.7.20</version>
+		<version>5.7.21-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-system</artifactId>
diff --git a/pom.xml b/pom.xml
index ec82d9de5..906bd8b87 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,7 +8,7 @@
 
 	<groupId>cn.hutool</groupId>
 	<artifactId>hutool-parent</artifactId>
-	<version>5.7.20</version>
+	<version>5.7.21-SNAPSHOT</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/dromara/hutool</url>