diff --git a/agent/pom.xml b/agent/pom.xml
index 64e21cc6c71..09dc39ef513 100644
--- a/agent/pom.xml
+++ b/agent/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.1.1-SNAPSHOT</version>
+        <version>3.1.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>arthas-agent</artifactId>
diff --git a/boot/pom.xml b/boot/pom.xml
index e1b60cdc102..19a2cf0e36a 100644
--- a/boot/pom.xml
+++ b/boot/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.1.1-SNAPSHOT</version>
+        <version>3.1.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>arthas-boot</artifactId>
diff --git a/client/pom.xml b/client/pom.xml
index 7fbad37344e..178bd9491cd 100644
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -3,7 +3,7 @@
     <parent>
         <artifactId>arthas-all</artifactId>
         <groupId>com.taobao.arthas</groupId>
-        <version>3.1.1-SNAPSHOT</version>
+        <version>3.1.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/common/pom.xml b/common/pom.xml
index 4179b5fa277..89d5dee4caa 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.1.1-SNAPSHOT</version>
+        <version>3.1.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>arthas-common</artifactId>
diff --git a/core/pom.xml b/core/pom.xml
index 5d7a2c3b11f..4d47963f53f 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.1.1-SNAPSHOT</version>
+        <version>3.1.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>arthas-core</artifactId>
diff --git a/demo/pom.xml b/demo/pom.xml
index 1a2c7ae40ed..b2679a14c4e 100644
--- a/demo/pom.xml
+++ b/demo/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.1.1-SNAPSHOT</version>
+        <version>3.1.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>arthas-demo</artifactId>
diff --git a/memorycompiler/pom.xml b/memorycompiler/pom.xml
index af86c103239..cfc4fa7be07 100644
--- a/memorycompiler/pom.xml
+++ b/memorycompiler/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.1.1-SNAPSHOT</version>
+        <version>3.1.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>arthas-memorycompiler</artifactId>
diff --git a/packaging/pom.xml b/packaging/pom.xml
index 1ba7a6bada3..1a0a3724389 100644
--- a/packaging/pom.xml
+++ b/packaging/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.1.1-SNAPSHOT</version>
+        <version>3.1.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>arthas-packaging</artifactId>
diff --git a/pom.xml b/pom.xml
index d5e0f076140..56e74709fd3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -47,7 +47,7 @@
 
     <groupId>com.taobao.arthas</groupId>
     <artifactId>arthas-all</artifactId>
-    <version>3.1.1-SNAPSHOT</version>
+    <version>3.1.1</version>
     <packaging>pom</packaging>
 
     <name>arthas-all</name>
diff --git a/site/pom.xml b/site/pom.xml
index 8c7b29b508f..ecb1619e004 100644
--- a/site/pom.xml
+++ b/site/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.1.1-SNAPSHOT</version>
+        <version>3.1.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>arthas-site</artifactId>
diff --git a/spy/pom.xml b/spy/pom.xml
index 01cdf3820f6..c99e82f6df2 100644
--- a/spy/pom.xml
+++ b/spy/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.1.1-SNAPSHOT</version>
+        <version>3.1.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>arthas-spy</artifactId>
diff --git a/testcase/pom.xml b/testcase/pom.xml
index 397a684d80e..889ef626f91 100644
--- a/testcase/pom.xml
+++ b/testcase/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>com.taobao.arthas</groupId>
         <artifactId>arthas-all</artifactId>
-        <version>3.1.1-SNAPSHOT</version>
+        <version>3.1.1</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
     <artifactId>arthas-testcase</artifactId>