diff --git a/Dockerfile b/Dockerfile
index df73b92b..57f07b57 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM openjdk:8-jdk-alpine
 
-ARG ARTHAS_VERSION="3.4.1"
+ARG ARTHAS_VERSION="3.4.2"
 ARG MIRROR=false
 
 ENV MAVEN_HOST=https://repo1.maven.org/maven2 \
diff --git a/Dockerfile-No-Jdk b/Dockerfile-No-Jdk
index 932a98c5..14e31083 100644
--- a/Dockerfile-No-Jdk
+++ b/Dockerfile-No-Jdk
@@ -1,6 +1,6 @@
 FROM alpine
 
-ARG ARTHAS_VERSION="3.4.1"
+ARG ARTHAS_VERSION="3.4.2"
 ARG MIRROR=false
 
 ENV MAVEN_HOST=https://repo1.maven.org/maven2 \
diff --git a/bin/as.sh b/bin/as.sh
index ac61daf1..e6f72987 100755
--- a/bin/as.sh
+++ b/bin/as.sh
@@ -8,10 +8,10 @@
 
 # program : Arthas
 #  author : Core Engine @ Taobao.com
-#    date : 2020-09-11
+#    date : 2020-09-22
 
 # current arthas script version
-ARTHAS_SCRIPT_VERSION=3.4.1
+ARTHAS_SCRIPT_VERSION=3.4.2
 
 # SYNOPSIS
 #   rreadlink <fileOrDirPath>
@@ -430,7 +430,7 @@ 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 3.4.1
+  ./as.sh --use-version 3.4.2
   ./as.sh --session-timeout 3600
   ./as.sh --attach-only
   ./as.sh --select arthas-demo
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 17c1890f..fac6fd77 100644
--- a/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java
+++ b/boot/src/main/java/com/taobao/arthas/boot/Bootstrap.java
@@ -52,7 +52,7 @@ import static com.taobao.arthas.boot.ProcessUtils.STATUS_EXEC_TIMEOUT;
                 + "  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 3.4.1\n"
+                + "  java -jar arthas-boot.jar --use-version 3.4.2\n"
                 + "  java -jar arthas-boot.jar --versions\n"
                 + "  java -jar arthas-boot.jar --select arthas-demo\n"
                 + "  java -jar arthas-boot.jar --session-timeout 3600\n" + "  java -jar arthas-boot.jar --attach-only\n"