diff --git a/README.md b/README.md
index 32202709d3..d49a570b2e 100644
--- a/README.md
+++ b/README.md
@@ -49,22 +49,22 @@ $ java -version
 java version "1.8.0_121"
 ```
 
-For Windows users, click [here](https://dist.apache.org/repos/dist/release/rocketmq/5.5.0/rocketmq-all-5.5.0-bin-release.zip) to download the 5.5.0 RocketMQ binary release,
+For Windows users, click [here](https://dist.apache.org/repos/dist/release/rocketmq/5.5.1/rocketmq-all-5.5.1-bin-release.zip) to download the 5.5.1 RocketMQ binary release,
 unpack it to your local disk, such as `D:\rocketmq`.
 For macOS and Linux users, execute following commands:
 
 ```shell
 # Download release from the Apache mirror
-$ wget https://dist.apache.org/repos/dist/release/rocketmq/5.5.0/rocketmq-all-5.5.0-bin-release.zip
+$ wget https://dist.apache.org/repos/dist/release/rocketmq/5.5.1/rocketmq-all-5.5.1-bin-release.zip
 
 # Unpack the release
-$ unzip rocketmq-all-5.5.0-bin-release.zip
+$ unzip rocketmq-all-5.5.1-bin-release.zip
 ```
 
 Prepare a terminal and change to the extracted `bin` directory:
 
 ```shell
-$ cd rocketmq-all-5.5.0-bin-release/bin
+$ cd rocketmq-all-5.5.1-bin-release/bin
 ```
 
 **1) Start NameServer**
diff --git a/common/src/main/java/org/apache/rocketmq/common/MQVersion.java b/common/src/main/java/org/apache/rocketmq/common/MQVersion.java
index 0c92781403..e720f1245e 100644
--- a/common/src/main/java/org/apache/rocketmq/common/MQVersion.java
+++ b/common/src/main/java/org/apache/rocketmq/common/MQVersion.java
@@ -18,7 +18,7 @@ package org.apache.rocketmq.common;
 
 public class MQVersion {
 
-    public static final int CURRENT_VERSION = Version.V5_5_0.ordinal();
+    public static final int CURRENT_VERSION = Version.V5_5_1.ordinal();
 
     private static final Version[] VERSION_VALUES = Version.values();
 
diff --git a/pom.xml b/pom.xml
index da23575f4e..8bae6028fb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -88,7 +88,7 @@
     </issueManagement>
 
     <properties>
-        <revision>5.5.0</revision>
+        <revision>5.5.1</revision>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <project.root>${basedir}</project.root>