diff --git a/samples/sample-01/pom.xml b/samples/sample-01/pom.xml
index d3abe008..5db136ca 100644
--- a/samples/sample-01/pom.xml
+++ b/samples/sample-01/pom.xml
@@ -5,7 +5,7 @@
 
 	<groupId>com.example</groupId>
 	<artifactId>kafka-sample-01</artifactId>
-	<version>2.3.1.BUILD-SNAPSHOT</version>
+	<version>2.3.1.RELEASE</version>
 	<packaging>jar</packaging>
 
 	<name>kafka-sample-01</name>
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.2.0.BUILD-SNAPSHOT</version>
+		<version>2.2.0.RELEASE</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/samples/sample-02/pom.xml b/samples/sample-02/pom.xml
index c4994274..4da34f4e 100644
--- a/samples/sample-02/pom.xml
+++ b/samples/sample-02/pom.xml
@@ -5,7 +5,7 @@
 
 	<groupId>com.example</groupId>
 	<artifactId>kafka-sample-02</artifactId>
-	<version>2.3.1.BUILD-SNAPSHOT</version>
+	<version>2.3.1.RELEASE</version>
 	<packaging>jar</packaging>
 
 	<name>kafka-sample-02</name>
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.2.0.BUILD-SNAPSHOT</version>
+		<version>2.2.0.RELEASE</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 
diff --git a/samples/sample-03/pom.xml b/samples/sample-03/pom.xml
index e50ef42d..886dfbb7 100644
--- a/samples/sample-03/pom.xml
+++ b/samples/sample-03/pom.xml
@@ -5,7 +5,7 @@
 
 	<groupId>com.example</groupId>
 	<artifactId>kafka-sample-03</artifactId>
-	<version>2.3.1.BUILD-SNAPSHOT</version>
+	<version>2.3.1.RELEASE</version>
 	<packaging>jar</packaging>
 
 	<name>kafka-sample-03</name>
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.2.0.BUILD-SNAPSHOT</version>
+		<version>2.2.0.RELEASE</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>