diff --git a/modules/siddhi-launcher/pom.xml b/modules/siddhi-launcher/pom.xml
index e5ac6f6..4129e7c 100644
--- a/modules/siddhi-launcher/pom.xml
+++ b/modules/siddhi-launcher/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>io.siddhi.sdk</groupId>
         <artifactId>siddhi-sdk-parent</artifactId>
-        <version>5.1.1-SNAPSHOT</version>
+        <version>5.1.1</version>
         <relativePath>../../pom.xml</relativePath>
     </parent>
     <artifactId>siddhi-launcher</artifactId>
diff --git a/pom.xml b/pom.xml
index fc6dca5..bc3ee6c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -27,7 +27,7 @@
     <groupId>io.siddhi.sdk</groupId>
     <artifactId>siddhi-sdk-parent</artifactId>
     <packaging>pom</packaging>
-    <version>5.1.1-SNAPSHOT</version>
+    <version>5.1.1</version>
     <name>WSO2 Siddhi SDK</name>
 
     <url>http://wso2.org</url>
@@ -36,7 +36,7 @@
         <url>https://github.com/siddhi-io/siddhi-sdk.git</url>
         <developerConnection>scm:git:https://github.com/siddhi-io/siddhi-sdk.git</developerConnection>
         <connection>scm:git:https://github.com/siddhi-io/siddhi-sdk.git</connection>
-        <tag>HEAD</tag>
+        <tag>v5.1.1</tag>
     </scm>
 
     <modules>