diff --git a/kotlin-asyncapi-core/pom.xml b/kotlin-asyncapi-core/pom.xml
index 0c489d0..58a6365 100644
--- a/kotlin-asyncapi-core/pom.xml
+++ b/kotlin-asyncapi-core/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.openfolder</groupId>
         <artifactId>kotlin-asyncapi-parent</artifactId>
-        <version>2.1.1-SNAPSHOT</version>
+        <version>2.1.1</version>
     </parent>
 
     <artifactId>kotlin-asyncapi-core</artifactId>
diff --git a/kotlin-asyncapi-maven-plugin/pom.xml b/kotlin-asyncapi-maven-plugin/pom.xml
index 8bc21c0..0524b94 100644
--- a/kotlin-asyncapi-maven-plugin/pom.xml
+++ b/kotlin-asyncapi-maven-plugin/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <artifactId>kotlin-asyncapi-parent</artifactId>
         <groupId>org.openfolder</groupId>
-        <version>2.1.1-SNAPSHOT</version>
+        <version>2.1.1</version>
     </parent>
 
     <artifactId>kotlin-asyncapi-maven-plugin</artifactId>
diff --git a/kotlin-asyncapi-script/pom.xml b/kotlin-asyncapi-script/pom.xml
index d6523e5..017d195 100644
--- a/kotlin-asyncapi-script/pom.xml
+++ b/kotlin-asyncapi-script/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <artifactId>kotlin-asyncapi-parent</artifactId>
         <groupId>org.openfolder</groupId>
-        <version>2.1.1-SNAPSHOT</version>
+        <version>2.1.1</version>
     </parent>
 
     <artifactId>kotlin-asyncapi-script</artifactId>
diff --git a/kotlin-asyncapi-spring-web/pom.xml b/kotlin-asyncapi-spring-web/pom.xml
index 2013df2..260fff9 100644
--- a/kotlin-asyncapi-spring-web/pom.xml
+++ b/kotlin-asyncapi-spring-web/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.openfolder</groupId>
         <artifactId>kotlin-asyncapi-parent</artifactId>
-        <version>2.1.1-SNAPSHOT</version>
+        <version>2.1.1</version>
     </parent>
 
     <artifactId>kotlin-asyncapi-spring-web</artifactId>
diff --git a/pom.xml b/pom.xml
index ecc2d78..cc374bf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>org.openfolder</groupId>
     <artifactId>kotlin-asyncapi-parent</artifactId>
-    <version>2.1.1-SNAPSHOT</version>
+    <version>2.1.1</version>
     <packaging>pom</packaging>
 
     <name>Kotlin AsyncAPI Parent POM</name>