diff --git a/modules/commons/pom.xml b/modules/commons/pom.xml
index f061b99d3a..eae51e067f 100644
--- a/modules/commons/pom.xml
+++ b/modules/commons/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/core/pom.xml b/modules/core/pom.xml
index de3fd7a6e0..ec1a2b2779 100644
--- a/modules/core/pom.xml
+++ b/modules/core/pom.xml
@@ -16,7 +16,7 @@
 	<parent>
 		<groupId>org.apache.synapse</groupId>
 		<artifactId>Apache-Synapse</artifactId>
-		<version>4.0.0-wso2v154</version>
+		<version>4.0.0-wso2v155-SNAPSHOT</version>
 		<relativePath>../../pom.xml</relativePath>
 	</parent>
 
diff --git a/modules/coverage-report/pom.xml b/modules/coverage-report/pom.xml
index ce2694836d..62984697e2 100644
--- a/modules/coverage-report/pom.xml
+++ b/modules/coverage-report/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/distribution/pom.xml b/modules/distribution/pom.xml
index f9de5dd89d..5a6988d350 100644
--- a/modules/distribution/pom.xml
+++ b/modules/distribution/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/experimental/pom.xml b/modules/experimental/pom.xml
index 7e808e309d..e2dbc7e439 100644
--- a/modules/experimental/pom.xml
+++ b/modules/experimental/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/extensions/pom.xml b/modules/extensions/pom.xml
index 1860190cc6..582bcca546 100644
--- a/modules/extensions/pom.xml
+++ b/modules/extensions/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/features/org.apache.synapse.samples.feature/pom.xml b/modules/features/org.apache.synapse.samples.feature/pom.xml
index 51e40e15c3..4b56d49bc8 100644
--- a/modules/features/org.apache.synapse.samples.feature/pom.xml
+++ b/modules/features/org.apache.synapse.samples.feature/pom.xml
@@ -19,7 +19,7 @@
 
     <parent>
         <artifactId>synapse-features</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <groupId>org.apache.synapse</groupId>
     </parent>
 
diff --git a/modules/features/org.apache.synapse.transport.fix.feature/pom.xml b/modules/features/org.apache.synapse.transport.fix.feature/pom.xml
index 7377469eb3..cf67127992 100644
--- a/modules/features/org.apache.synapse.transport.fix.feature/pom.xml
+++ b/modules/features/org.apache.synapse.transport.fix.feature/pom.xml
@@ -19,7 +19,7 @@
 
     <parent>
         <artifactId>synapse-features</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <groupId>org.apache.synapse</groupId>
     </parent>
 
diff --git a/modules/features/org.apache.synapse.transport.nhttp.feature/pom.xml b/modules/features/org.apache.synapse.transport.nhttp.feature/pom.xml
index 4d828e5148..e4d7c30240 100644
--- a/modules/features/org.apache.synapse.transport.nhttp.feature/pom.xml
+++ b/modules/features/org.apache.synapse.transport.nhttp.feature/pom.xml
@@ -19,7 +19,7 @@
 
     <parent>
         <artifactId>synapse-features</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <groupId>org.apache.synapse</groupId>
     </parent>
 
diff --git a/modules/features/org.apache.synapse.transport.vfs.feature/pom.xml b/modules/features/org.apache.synapse.transport.vfs.feature/pom.xml
index 22e139daf6..c1b8276d9b 100644
--- a/modules/features/org.apache.synapse.transport.vfs.feature/pom.xml
+++ b/modules/features/org.apache.synapse.transport.vfs.feature/pom.xml
@@ -19,7 +19,7 @@
 
     <parent>
         <artifactId>synapse-features</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <groupId>org.apache.synapse</groupId>
     </parent>
 
diff --git a/modules/features/org.apache.synapse.transport.vfs.smb.feature/pom.xml b/modules/features/org.apache.synapse.transport.vfs.smb.feature/pom.xml
index 90cfb4aeb5..3badbe1314 100644
--- a/modules/features/org.apache.synapse.transport.vfs.smb.feature/pom.xml
+++ b/modules/features/org.apache.synapse.transport.vfs.smb.feature/pom.xml
@@ -19,7 +19,7 @@
 
     <parent>
         <artifactId>synapse-features</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <groupId>org.apache.synapse</groupId>
     </parent>
 
diff --git a/modules/features/org.apache.synapse.transport.vfs.smb2.feature/pom.xml b/modules/features/org.apache.synapse.transport.vfs.smb2.feature/pom.xml
index 67fb4526e9..3495012466 100644
--- a/modules/features/org.apache.synapse.transport.vfs.smb2.feature/pom.xml
+++ b/modules/features/org.apache.synapse.transport.vfs.smb2.feature/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>synapse-features</artifactId>
         <groupId>org.apache.synapse</groupId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/features/org.apache.synapse.wso2.feature/pom.xml b/modules/features/org.apache.synapse.wso2.feature/pom.xml
index 4ab2992979..270b5406aa 100644
--- a/modules/features/org.apache.synapse.wso2.feature/pom.xml
+++ b/modules/features/org.apache.synapse.wso2.feature/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <artifactId>synapse-features</artifactId>
         <groupId>org.apache.synapse</groupId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
     </parent>
 
     <modelVersion>4.0.0</modelVersion>
diff --git a/modules/features/pom.xml b/modules/features/pom.xml
index 131a94308a..64a1aff3ae 100644
--- a/modules/features/pom.xml
+++ b/modules/features/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/handler/pom.xml b/modules/handler/pom.xml
index 8ddefcb219..65d19e396b 100644
--- a/modules/handler/pom.xml
+++ b/modules/handler/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/integration/pom.xml b/modules/integration/pom.xml
index edee6efc7f..0631589d47 100644
--- a/modules/integration/pom.xml
+++ b/modules/integration/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
@@ -37,7 +37,7 @@
         <connection>scm:svn:http://svn.apache.org/repos/asf/synapse/trunk/java/modules/integration</connection>
         <developerConnection>scm:svn:https://svn.apache.org/repos/asf/synapse/trunk/java/modules/integration</developerConnection>
         <url>http://svn.apache.org/viewvc/synapse/trunk/java/modules/integration</url>
-      <tag>v4.0.0-wso2v154</tag>
+      <tag>HEAD</tag>
   </scm>
 
     <build>
diff --git a/modules/migrator/pom.xml b/modules/migrator/pom.xml
index cb0861b818..5c618ee962 100644
--- a/modules/migrator/pom.xml
+++ b/modules/migrator/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/packaging/package-archetype/pom.xml b/modules/packaging/package-archetype/pom.xml
index abd083026b..33da944fcc 100644
--- a/modules/packaging/package-archetype/pom.xml
+++ b/modules/packaging/package-archetype/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../../pom.xml</relativePath>
     </parent>
     <artifactId>synapse-package-archetype</artifactId>
diff --git a/modules/packaging/package-skeleton/pom.xml b/modules/packaging/package-skeleton/pom.xml
index d553221a92..f4bc41f8cc 100644
--- a/modules/packaging/package-skeleton/pom.xml
+++ b/modules/packaging/package-skeleton/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../../pom.xml</relativePath>
     </parent>
     <artifactId>synapse-package-skeleton</artifactId>
diff --git a/modules/patches/pom.xml b/modules/patches/pom.xml
index 957ba4f409..a251d8a245 100644
--- a/modules/patches/pom.xml
+++ b/modules/patches/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>synapse-patches</artifactId>
diff --git a/modules/samples/pom.xml b/modules/samples/pom.xml
index d46c35e376..88f77b4ff5 100644
--- a/modules/samples/pom.xml
+++ b/modules/samples/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/securevault/pom.xml b/modules/securevault/pom.xml
index f1e4baabce..801859b987 100644
--- a/modules/securevault/pom.xml
+++ b/modules/securevault/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <groupId>org.apache.synapse</groupId>
diff --git a/modules/tasks/pom.xml b/modules/tasks/pom.xml
index e9993ffdee..9aab1ccc63 100644
--- a/modules/tasks/pom.xml
+++ b/modules/tasks/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/transports/core/nhttp/pom.xml b/modules/transports/core/nhttp/pom.xml
index cbbc1ffc3e..6bc636a1d9 100644
--- a/modules/transports/core/nhttp/pom.xml
+++ b/modules/transports/core/nhttp/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>synapse-transports</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/transports/core/pipe/pom.xml b/modules/transports/core/pipe/pom.xml
index dcd709bb78..28b43c1ca8 100644
--- a/modules/transports/core/pipe/pom.xml
+++ b/modules/transports/core/pipe/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>synapse-transports</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/transports/core/vfs/pom.xml b/modules/transports/core/vfs/pom.xml
index ef5bdbe39d..5acbb8527b 100644
--- a/modules/transports/core/vfs/pom.xml
+++ b/modules/transports/core/vfs/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>synapse-transports</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/transports/optional/fix/pom.xml b/modules/transports/optional/fix/pom.xml
index 63938a0427..b02cd4dc3b 100644
--- a/modules/transports/optional/fix/pom.xml
+++ b/modules/transports/optional/fix/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>synapse-transports</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/transports/pom.xml b/modules/transports/pom.xml
index 53ef753763..f61e15d40b 100644
--- a/modules/transports/pom.xml
+++ b/modules/transports/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/war/pom.xml b/modules/war/pom.xml
index dffefc5617..a5edd07f9e 100644
--- a/modules/war/pom.xml
+++ b/modules/war/pom.xml
@@ -23,7 +23,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
 
diff --git a/modules/xar-maven-plugin/pom.xml b/modules/xar-maven-plugin/pom.xml
index 0f97b8f237..dfbff69452 100644
--- a/modules/xar-maven-plugin/pom.xml
+++ b/modules/xar-maven-plugin/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.apache.synapse</groupId>
         <artifactId>Apache-Synapse</artifactId>
-        <version>4.0.0-wso2v154</version>
+        <version>4.0.0-wso2v155-SNAPSHOT</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <groupId>org.apache.synapse</groupId>
diff --git a/pom.xml b/pom.xml
index a3c04ab1a8..c3c1379c71 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,7 +26,7 @@
    </parent>
    <groupId>org.apache.synapse</groupId>
    <artifactId>Apache-Synapse</artifactId>
-   <version>4.0.0-wso2v154</version>
+   <version>4.0.0-wso2v155-SNAPSHOT</version>
    <name>Apache Synapse</name>
    <description>Apache Synapse</description>
    <packaging>pom</packaging>
@@ -69,7 +69,7 @@
       <connection>scm:git:https://github.com/wso2/wso2-synapse.git</connection>
       <developerConnection>scm:git:https://github.com/wso2/wso2-synapse.git</developerConnection>
       <url>https://github.com/wso2/wso2-synapse.git/</url>
-      <tag>v4.0.0-wso2v154</tag>
+      <tag>HEAD</tag>
    </scm>
    <organization>
       <name>Apache Software Foundation</name>