diff --git a/acl/pom.xml b/acl/pom.xml
index 5e61c7cbdd7af6f9e45c0f061482952903741c10..d62493417892e67b78a46f414f95320be263b6a7 100644
--- a/acl/pom.xml
+++ b/acl/pom.xml
@@ -13,7 +13,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
     <artifactId>rocketmq-acl</artifactId>
     <name>rocketmq-acl ${project.version}</name>
diff --git a/broker/pom.xml b/broker/pom.xml
index f31f0af80721194cc2fc6ace1ecbadc6b7235490..3a58aa0c717d542afa684680daa640f662fe16b4 100644
--- a/broker/pom.xml
+++ b/broker/pom.xml
@@ -13,7 +13,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/client/pom.xml b/client/pom.xml
index 446c5efaeec69890f552b5f8aa3c63d46ca3d930..95ef4617dd1b68b56cbebc6fab990ea783c8d602 100644
--- a/client/pom.xml
+++ b/client/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/common/pom.xml b/common/pom.xml
index 0e3bf7bfb7c56f43f7fcc528e7917d0837c5b2b1..ac1d086b4ccf486b848beaae1813b70f81077911 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/distribution/pom.xml b/distribution/pom.xml
index 1d090dec0cbab36ce4b6ce84b38954b73d061112..a5698bca1c614dfafce9590993a9923e265d346e 100644
--- a/distribution/pom.xml
+++ b/distribution/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
     <artifactId>rocketmq-distribution</artifactId>
     <name>rocketmq-distribution ${project.version}</name>
diff --git a/example/pom.xml b/example/pom.xml
index 1a54df7379bb15f475535648f89607f59bbbb4cf..81f7515dbe332d8bbb6798bc2beb28f4f0e647b6 100644
--- a/example/pom.xml
+++ b/example/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <artifactId>rocketmq-all</artifactId>
         <groupId>org.apache.rocketmq</groupId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/filter/pom.xml b/filter/pom.xml
index f7cccd71f89f38aee3227dbb513334be0cc55135..41bda9d0d22d2c50c10ccdf4b36263e8689d3083 100644
--- a/filter/pom.xml
+++ b/filter/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>rocketmq-all</artifactId>
         <groupId>org.apache.rocketmq</groupId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/logappender/pom.xml b/logappender/pom.xml
index 181f1bd47829fda60214c08ca1f3034b170e946f..cac520b610360308adb90a4a0dbf67ea2ed12d92 100644
--- a/logappender/pom.xml
+++ b/logappender/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <artifactId>rocketmq-logappender</artifactId>
diff --git a/logging/pom.xml b/logging/pom.xml
index e9fa2a42f4f179c09cb8dcf60f8d47de0ff4703e..8ebb24304529e907f918e3e77176b200693d6189 100644
--- a/logging/pom.xml
+++ b/logging/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/namesrv/pom.xml b/namesrv/pom.xml
index 95cc7b2faa6824fdad8997fc448ed66548af86bf..01ef5b60fe951dfccff97a80ebd0df8f14cf1b47 100644
--- a/namesrv/pom.xml
+++ b/namesrv/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/openmessaging/pom.xml b/openmessaging/pom.xml
index 069900cb48ca095822e615f804be83516e274bb6..4688c04043633cf98658a7d7d55cd5dad6459d27 100644
--- a/openmessaging/pom.xml
+++ b/openmessaging/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>rocketmq-all</artifactId>
         <groupId>org.apache.rocketmq</groupId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/pom.xml b/pom.xml
index ed700c95518fb2088fb69a3453ee06e706ec54cc..b6f1770e2d85c6295c02f5077926e158d1d8f872 100644
--- a/pom.xml
+++ b/pom.xml
@@ -29,7 +29,7 @@
     <inceptionYear>2012</inceptionYear>
     <groupId>org.apache.rocketmq</groupId>
     <artifactId>rocketmq-all</artifactId>
-    <version>4.9.0</version>
+    <version>4.9.1-SNAPSHOT</version>
     <packaging>pom</packaging>
     <name>Apache RocketMQ ${project.version}</name>
     <url>http://rocketmq.apache.org/</url>
@@ -38,7 +38,7 @@
         <url>git@github.com:apache/rocketmq.git</url>
         <connection>scm:git:git@github.com:apache/rocketmq.git</connection>
         <developerConnection>scm:git:git@github.com:apache/rocketmq.git</developerConnection>
-        <tag>rocketmq-all-4.9.0</tag>
+        <tag>HEAD</tag>
     </scm>
 
     <mailingLists>
diff --git a/remoting/pom.xml b/remoting/pom.xml
index 6df93dc692ad21d0c5e286ec6eb9a4bf268fe413..765e1a93bc0f83a7d59a794619ba356f7cccda9c 100644
--- a/remoting/pom.xml
+++ b/remoting/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/srvutil/pom.xml b/srvutil/pom.xml
index 7f1d4c01026adb6504526cd218213b6bf1ccfd7f..9c4544c0b25e55c1e817aba7c49f2574d0dd0dc6 100644
--- a/srvutil/pom.xml
+++ b/srvutil/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/store/pom.xml b/store/pom.xml
index 33e8dc9e60cee1cd212e6fd46c1c9ba3f0877f0e..23e9763d81402d43340a3db26bf29a654b7e9587 100644
--- a/store/pom.xml
+++ b/store/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/test/pom.xml b/test/pom.xml
index 02f90101d8b793786b09b61be3d0c0741cba95b2..41296501c28b649e170660c8490325641be836ce 100644
--- a/test/pom.xml
+++ b/test/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>rocketmq-all</artifactId>
         <groupId>org.apache.rocketmq</groupId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/tools/pom.xml b/tools/pom.xml
index 355464e2ff14d5bc75a86c80e7aae97d83a05014..abe8197de3974b6c3b1f52f9e5efbbf5078224dd 100644
--- a/tools/pom.xml
+++ b/tools/pom.xml
@@ -19,7 +19,7 @@
     <parent>
         <groupId>org.apache.rocketmq</groupId>
         <artifactId>rocketmq-all</artifactId>
-        <version>4.9.0</version>
+        <version>4.9.1-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>