diff --git a/README-en.md b/README-en.md
index 88f95831..982e94e1 100644
--- a/README-en.md
+++ b/README-en.md
@@ -11,7 +11,7 @@
 <dependency>
 	<groupId>org.bytesoft</groupId>
 	<artifactId>bytetcc-supports</artifactId>
-	<version>0.4.0-alpha3</version>
+	<version>0.4.0-alpha4</version>
 </dependency>
 ```
 
diff --git a/README.md b/README.md
index 3928075e..ca02fb6f 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 <dependency>
 	<groupId>org.bytesoft</groupId>
 	<artifactId>bytetcc-supports</artifactId>
-	<version>0.4.0-alpha3</version>
+	<version>0.4.0-alpha4</version>
 </dependency>
 ```
 #### 1.2. 编写业务服务
diff --git a/bytetcc-common/pom.xml b/bytetcc-common/pom.xml
index 149ff1f3..19332d05 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-alpha3</version>
+		<version>0.4.0-alpha4</version>
 	</parent>
 	<artifactId>bytetcc-common</artifactId>
 	<packaging>jar</packaging>
diff --git a/bytetcc-core/pom.xml b/bytetcc-core/pom.xml
index 8f37546e..b6328365 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-alpha3</version>
+		<version>0.4.0-alpha4</version>
 	</parent>
 	<artifactId>bytetcc-core</artifactId>
 	<packaging>jar</packaging>
diff --git a/bytetcc-supports-dubbo/pom.xml b/bytetcc-supports-dubbo/pom.xml
index 46ebb78d..b1a2d680 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-alpha3</version>
+		<version>0.4.0-alpha4</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 605b839a..4f47a7b6 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-alpha3</version>
+		<version>0.4.0-alpha4</version>
 	</parent>
 	<artifactId>bytetcc-supports-springcloud</artifactId>
 	<packaging>jar</packaging>
diff --git a/bytetcc-supports/pom.xml b/bytetcc-supports/pom.xml
index 87cfe33e..f8f96b05 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-alpha3</version>
+		<version>0.4.0-alpha4</version>
 	</parent>
 	<artifactId>bytetcc-supports</artifactId>
 	<packaging>jar</packaging>
diff --git a/pom.xml b/pom.xml
index 540d2441..968a28e7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
 	<groupId>org.bytesoft</groupId>
 	<artifactId>bytetcc-parent</artifactId>
-	<version>0.4.0-alpha3</version>
+	<version>0.4.0-alpha4</version>
 	<packaging>pom</packaging>
 	<name>bytetcc-parent</name>
 	<description>ByteTCC is a transaction manager based on the TCC(Try/Confirm/Cancel) mechanism.</description>
@@ -128,27 +128,27 @@
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytetcc-common</artifactId>
-				<version>0.4.0-alpha3</version>
+				<version>0.4.0-alpha4</version>
 			</dependency>
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytetcc-core</artifactId>
-				<version>0.4.0-alpha3</version>
+				<version>0.4.0-alpha4</version>
 			</dependency>
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytetcc-supports</artifactId>
-				<version>0.4.0-alpha3</version>
+				<version>0.4.0-alpha4</version>
 			</dependency>
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytetcc-supports-dubbo</artifactId>
-				<version>0.4.0-alpha3</version>
+				<version>0.4.0-alpha4</version>
 			</dependency>
 			<dependency>
 				<groupId>org.bytesoft</groupId>
 				<artifactId>bytetcc-supports-springcloud</artifactId>
-				<version>0.4.0-alpha3</version>
+				<version>0.4.0-alpha4</version>
 			</dependency>
 
 			<!-- logger -->