diff --git a/bytetcc-common/pom.xml b/bytetcc-common/pom.xml
index 4a351c29..4c98b93c 100644
--- a/bytetcc-common/pom.xml
+++ b/bytetcc-common/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.bytesoft</groupId>
 		<artifactId>bytetcc-parent</artifactId>
-		<version>0.4.0-SNAPSHOT</version>
+		<version>0.4.0-alpha</version>
 	</parent>
 	<artifactId>bytetcc-common</artifactId>
 	<packaging>jar</packaging>
diff --git a/bytetcc-core/pom.xml b/bytetcc-core/pom.xml
index c08df1f8..f1cfface 100644
--- a/bytetcc-core/pom.xml
+++ b/bytetcc-core/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.bytesoft</groupId>
 		<artifactId>bytetcc-parent</artifactId>
-		<version>0.4.0-SNAPSHOT</version>
+		<version>0.4.0-alpha</version>
 	</parent>
 	<artifactId>bytetcc-core</artifactId>
 	<packaging>jar</packaging>
diff --git a/bytetcc-supports-dubbo/pom.xml b/bytetcc-supports-dubbo/pom.xml
index d05b45e6..5d6eaae9 100644
--- a/bytetcc-supports-dubbo/pom.xml
+++ b/bytetcc-supports-dubbo/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.bytesoft</groupId>
 		<artifactId>bytetcc-parent</artifactId>
-		<version>0.4.0-SNAPSHOT</version>
+		<version>0.4.0-alpha</version>
 	</parent>
 	<artifactId>bytetcc-supports-dubbo</artifactId>
 	<packaging>jar</packaging>
diff --git a/bytetcc-supports-springcloud/pom.xml b/bytetcc-supports-springcloud/pom.xml
index 9ed0f8b0..b857b9e5 100644
--- a/bytetcc-supports-springcloud/pom.xml
+++ b/bytetcc-supports-springcloud/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.bytesoft</groupId>
 		<artifactId>bytetcc-parent</artifactId>
-		<version>0.4.0-SNAPSHOT</version>
+		<version>0.4.0-alpha</version>
 	</parent>
 	<artifactId>bytetcc-supports-springcloud</artifactId>
 	<packaging>jar</packaging>
diff --git a/bytetcc-supports/pom.xml b/bytetcc-supports/pom.xml
index 5b78624c..7c131de2 100644
--- a/bytetcc-supports/pom.xml
+++ b/bytetcc-supports/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.bytesoft</groupId>
 		<artifactId>bytetcc-parent</artifactId>
-		<version>0.4.0-SNAPSHOT</version>
+		<version>0.4.0-alpha</version>
 	</parent>
 	<artifactId>bytetcc-supports</artifactId>
 	<packaging>jar</packaging>
diff --git a/pom.xml b/pom.xml
index 3146b879..a8976b25 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
 	<groupId>org.bytesoft</groupId>
 	<artifactId>bytetcc-parent</artifactId>
-	<version>0.4.0-SNAPSHOT</version>
+	<version>0.4.0-alpha</version>
 	<packaging>pom</packaging>
 	<name>bytetcc-parent</name>
 	<description>ByteTCC is a transaction manager based on the TCC(Try/Confirm/Cancel) mechanism.</description>
@@ -111,44 +111,44 @@
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytejta-core</artifactId>
-				<version>0.4.0-SNAPSHOT</version>
+				<version>0.4.0-alpha</version>
 			</dependency>
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytejta-supports</artifactId>
-				<version>0.4.0-SNAPSHOT</version>
+				<version>0.4.0-alpha</version>
 			</dependency>
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytejta-supports-dubbo</artifactId>
-				<version>0.4.0-SNAPSHOT</version>
+				<version>0.4.0-alpha</version>
 			</dependency>
 
 			<!-- bytetcc -->
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytetcc-common</artifactId>
-				<version>0.4.0-SNAPSHOT</version>
+				<version>0.4.0-alpha</version>
 			</dependency>
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytetcc-core</artifactId>
-				<version>0.4.0-SNAPSHOT</version>
+				<version>0.4.0-alpha</version>
 			</dependency>
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytetcc-supports</artifactId>
-				<version>0.4.0-SNAPSHOT</version>
+				<version>0.4.0-alpha</version>
 			</dependency>
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytetcc-supports-dubbo</artifactId>
-				<version>0.4.0-SNAPSHOT</version>
+				<version>0.4.0-alpha</version>
 			</dependency>
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytetcc-supports-springcloud</artifactId>
-				<version>0.4.0-SNAPSHOT</version>
+				<version>0.4.0-alpha</version>
 			</dependency>
 
 			<!-- logger -->