diff --git a/Dockerfile b/Dockerfile
index 33ed4422a..f8e174d7c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM eclipse-temurin:8-jdk-alpine
 
-ARG ARTHAS_VERSION="4.2.1"
+ARG ARTHAS_VERSION="4.2.2"
 ARG MIRROR=false
 
 ENV MAVEN_HOST=https://repo1.maven.org/maven2 \
diff --git a/Dockerfile-No-Jdk b/Dockerfile-No-Jdk
index 6d11ffbe4..522aca98c 100644
--- a/Dockerfile-No-Jdk
+++ b/Dockerfile-No-Jdk
@@ -1,7 +1,7 @@
 # Stage 1: Build
 FROM eclipse-temurin:8-jdk-alpine AS builder
 
-ARG ARTHAS_VERSION="4.2.1"
+ARG ARTHAS_VERSION="4.2.2"
 ARG MIRROR=false
 ENV MAVEN_HOST=https://repo1.maven.org/maven2 \
   MIRROR_MAVEN_HOST=https://maven.aliyun.com/repository/public
diff --git a/bin/as.sh b/bin/as.sh
index 7d22092aa..45125e211 100755
--- a/bin/as.sh
+++ b/bin/as.sh
@@ -8,10 +8,10 @@
 
 # program : Arthas
 #  author : Core Engine @ Taobao.com
-#    date : 2026-06-02
+#    date : 2026-06-04
 
 # current arthas script version
-ARTHAS_SCRIPT_VERSION=4.2.1
+ARTHAS_SCRIPT_VERSION=4.2.2
 
 # SYNOPSIS
 #   rreadlink <fileOrDirPath>
@@ -468,7 +468,7 @@ EXAMPLES:
   ./as.sh --stat-url 'http://192.168.10.11:8080/api/stat'
   ./as.sh -c 'sysprop; thread' <pid>
   ./as.sh -f batch.as <pid>
-  ./as.sh --use-version 4.2.1
+  ./as.sh --use-version 4.2.2
   ./as.sh --session-timeout 3600
   ./as.sh --attach-only
   ./as.sh --disabled-commands stop,dump
diff --git a/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java b/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java
index 40f49a2f7..bf4b6f0cb 100644
--- a/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java
+++ b/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java
@@ -53,7 +53,7 @@ import com.taobao.middleware.cli.annotations.Summary;
                 + "  java -jar arthas-boot.jar --stat-url 'http://192.168.10.11:8080/api/stat'\n"
                 + "  java -jar arthas-boot.jar -c 'sysprop; thread' <pid>\n"
                 + "  java -jar arthas-boot.jar -f batch.as <pid>\n"
-                + "  java -jar arthas-boot.jar --use-version 4.2.1\n"
+                + "  java -jar arthas-boot.jar --use-version 4.2.2\n"
                 + "  java -jar arthas-boot.jar --versions\n"
                 + "  java -jar arthas-boot.jar --select math-game\n"
                 + "  java -jar arthas-boot.jar --session-timeout 3600\n" + "  java -jar arthas-boot.jar --attach-only\n"
diff --git a/core/src/main/java/com/taobao/arthas/core/mcp/ArthasMcpServer.java b/core/src/main/java/com/taobao/arthas/core/mcp/ArthasMcpServer.java
index 4deae67bf..afae1dedc 100644
--- a/core/src/main/java/com/taobao/arthas/core/mcp/ArthasMcpServer.java
+++ b/core/src/main/java/com/taobao/arthas/core/mcp/ArthasMcpServer.java
@@ -109,7 +109,7 @@ public class ArthasMcpServer {
 
             McpServerProperties properties = new McpServerProperties.Builder()
                     .name("arthas-mcp-server")
-                    .version("4.2.1")
+                    .version("4.2.2")
                     .mcpEndpoint(mcpEndpoint)
                     .toolChangeNotification(true)
                     .resourceChangeNotification(true)
diff --git a/pom.xml b/pom.xml
index dcf003ed0..a9ca9fbc4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -82,7 +82,7 @@
     </modules>
 
     <properties>
-        <revision>4.2.1</revision>
+        <revision>4.2.2</revision>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.target>1.8</maven.compiler.target>
         <maven.compiler.source>1.8</maven.compiler.source>