diff --git a/README.md b/README.md
index 52779af..e2e7915 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ lunar是一款无第三方依赖的公历(阳历)、农历(阴历、老黄历)
 <dependency>
   <groupId>cn.6tail</groupId>
   <artifactId>lunar</artifactId>
-  <version>1.2.20</version>
+  <version>1.2.21</version>
 </dependency>
 ```
 
diff --git a/README_EN.md b/README_EN.md
index d361d8f..f665f89 100644
--- a/README_EN.md
+++ b/README_EN.md
@@ -12,7 +12,7 @@ lunar is a calendar library for Solar and Chinese Lunar.
 <dependency>
   <groupId>cn.6tail</groupId>
   <artifactId>lunar</artifactId>
-  <version>1.2.20</version>
+  <version>1.2.21</version>
 </dependency>
 ```
 
diff --git a/pom.xml b/pom.xml
index 34388a8..1e45239 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,7 +7,7 @@
     <groupId>cn.6tail</groupId>
     <artifactId>lunar</artifactId>
     <packaging>jar</packaging>
-    <version>1.2.20</version>
+    <version>1.2.21</version>
     <name>${project.groupId}:${project.artifactId}</name>
     <url>https://github.com/6tail/lunar-java</url>
     <description>a calendar library for Solar and Chinese Lunar</description>