diff --git a/common/pom.xml b/common/pom.xml
index 400b2a21..cf833fe7 100644
--- a/common/pom.xml
+++ b/common/pom.xml
@@ -16,4 +16,4 @@
     </modules>
 
 
-</project>
\ No newline at end of file
+</project>
diff --git a/pom.xml b/pom.xml
index 672bc88f..d36c9c18 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,19 +25,43 @@
     </modules>
     <packaging>pom</packaging>
 
+    <properties>
+        <com.alibab.dubbo.version>2.6.6</com.alibab.dubbo.version>
+        <mysql-connector-java.version>5.1.47</mysql-connector-java.version>
+        <dubbo-spring-boot-starter.version>0.2.1.RELEASE</dubbo-spring-boot-starter.version>
+        <org.mapstruct.version>1.3.0.Final</org.mapstruct.version>
+    </properties>
+
     <dependencyManagement>
         <dependencies>
             <dependency>
                 <groupId>com.alibaba</groupId>
                 <artifactId>dubbo</artifactId>
-                <version>2.6.5</version>
+                <version>${com.alibab.dubbo.version}</version>
+            </dependency>
+            <dependency>
+                <groupId>com.alibaba.boot</groupId>
+                <artifactId>dubbo-spring-boot-starter</artifactId>
+                <version>0.2.1.RELEASE</version>
             </dependency>
 
             <dependency>
                 <groupId>mysql</groupId>
                 <artifactId>mysql-connector-java</artifactId>
-                <version>5.1.47</version>
+                <version>${mysql-connector-java.version}</version>
             </dependency>
+
+            <dependency>
+                <groupId>org.mapstruct</groupId>
+                <artifactId>mapstruct</artifactId> <!-- use mapstruct-jdk8 for Java 8 or higher -->
+                <version>${org.mapstruct.version}</version>
+            </dependency>
+            <dependency>
+                <groupId>org.mapstruct</groupId>
+                <artifactId>mapstruct-jdk8</artifactId>
+                <version>${org.mapstruct.version}</version>
+            </dependency>
+
         </dependencies>
     </dependencyManagement>
 
@@ -51,4 +75,4 @@
     <!--</distributionManagement>-->
 
 
-</project>
\ No newline at end of file
+</project>
diff --git a/product/product-application/pom.xml b/product/product-application/pom.xml
index 008fbd31..be7a4820 100644
--- a/product/product-application/pom.xml
+++ b/product/product-application/pom.xml
@@ -70,13 +70,11 @@
         <dependency>
             <groupId>com.alibaba</groupId>
             <artifactId>dubbo</artifactId>
-            <version>2.6.5</version>
         </dependency>
 
         <dependency>
             <groupId>com.alibaba.boot</groupId>
             <artifactId>dubbo-spring-boot-starter</artifactId>
-            <version>0.2.1.RELEASE</version>
         </dependency>
 
         <dependency>
@@ -88,7 +86,6 @@
         <dependency>
             <groupId>org.mapstruct</groupId>
             <artifactId>mapstruct</artifactId> <!-- use mapstruct-jdk8 for Java 8 or higher -->
-            <version>${org.mapstruct.version}</version>
         </dependency>
 
 
@@ -143,4 +140,4 @@
         </plugins>
     </build>
 
-</project>
\ No newline at end of file
+</project>
diff --git a/promotion/promotion-application/pom.xml b/promotion/promotion-application/pom.xml
index e633ae71..a88ce169 100644
--- a/promotion/promotion-application/pom.xml
+++ b/promotion/promotion-application/pom.xml
@@ -12,7 +12,6 @@
     <artifactId>promotion-application</artifactId>
 
     <properties>
-        <org.mapstruct.version>1.3.0.Final</org.mapstruct.version>
         <org.projectlombok.version>1.16.14</org.projectlombok.version>
     </properties>
 
@@ -63,12 +62,6 @@
             <version>2.12.0</version>
         </dependency>
 
-        <dependency>
-            <groupId>org.mapstruct</groupId>
-            <artifactId>mapstruct</artifactId> <!-- use mapstruct-jdk8 for Java 8 or higher -->
-            <version>${org.mapstruct.version}</version>
-        </dependency>
-
         <dependency>
             <groupId>io.springfox</groupId>
             <artifactId>springfox-swagger2</artifactId>
@@ -99,17 +92,6 @@
             <version>1.0-SNAPSHOT</version>
         </dependency>
 
-        <dependency>
-            <groupId>org.mapstruct</groupId>
-            <artifactId>mapstruct</artifactId> <!-- use mapstruct-jdk8 for Java 8 or higher -->
-            <version>${org.mapstruct.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.mapstruct</groupId>
-            <artifactId>mapstruct-jdk8</artifactId>
-            <version>${org.mapstruct.version}</version>
-        </dependency>
-
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
diff --git a/promotion/promotion-service-api/pom.xml b/promotion/promotion-service-api/pom.xml
index c49c3976..26a5a946 100644
--- a/promotion/promotion-service-api/pom.xml
+++ b/promotion/promotion-service-api/pom.xml
@@ -31,12 +31,10 @@
         <dependency>
             <groupId>org.mapstruct</groupId>
             <artifactId>mapstruct</artifactId> <!-- use mapstruct-jdk8 for Java 8 or higher -->
-            <version>${org.mapstruct.version}</version>
         </dependency>
         <dependency>
             <groupId>org.mapstruct</groupId>
             <artifactId>mapstruct-jdk8</artifactId>
-            <version>${org.mapstruct.version}</version>
         </dependency>
 
         <dependency>
diff --git a/promotion/promotion-service-impl/pom.xml b/promotion/promotion-service-impl/pom.xml
index ce002879..cca425a1 100644
--- a/promotion/promotion-service-impl/pom.xml
+++ b/promotion/promotion-service-impl/pom.xml
@@ -55,17 +55,6 @@
             <version>2.0.0</version>
         </dependency>
 
-        <dependency>
-            <groupId>org.mapstruct</groupId>
-            <artifactId>mapstruct</artifactId> <!-- use mapstruct-jdk8 for Java 8 or higher -->
-            <version>${org.mapstruct.version}</version>
-        </dependency>
-        <dependency>
-            <groupId>org.mapstruct</groupId>
-            <artifactId>mapstruct-jdk8</artifactId>
-            <version>${org.mapstruct.version}</version>
-        </dependency>
-
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>