diff --git a/dubbodemo_cloud_toolkit/dubbo-demo-consumer/pom.xml b/dubbodemo_cloud_toolkit/dubbo-demo-consumer/pom.xml
index 0106a46..b55977e 100644
--- a/dubbodemo_cloud_toolkit/dubbo-demo-consumer/pom.xml
+++ b/dubbodemo_cloud_toolkit/dubbo-demo-consumer/pom.xml
@@ -15,7 +15,7 @@
         <skip_maven_deploy>true</skip_maven_deploy>
         <slf4j-log4j12.version>1.7.25</slf4j-log4j12.version>
         <curator.version>2.12.0</curator.version>
-        <dubbo.version>2.7.15</dubbo.version>
+        <dubbo.version>2.7.21</dubbo.version>
     </properties>
     <dependencies>
         <dependency>
diff --git a/dubbodemo_cloud_toolkit/dubbo-demo-provider/pom.xml b/dubbodemo_cloud_toolkit/dubbo-demo-provider/pom.xml
index 1a66547..dd834fe 100644
--- a/dubbodemo_cloud_toolkit/dubbo-demo-provider/pom.xml
+++ b/dubbodemo_cloud_toolkit/dubbo-demo-provider/pom.xml
@@ -15,7 +15,7 @@
         <skip_maven_deploy>true</skip_maven_deploy>
         <slf4j-log4j12.version>1.7.25</slf4j-log4j12.version>
         <curator.version>2.12.0</curator.version>
-        <dubbo.version>2.7.15</dubbo.version>
+        <dubbo.version>2.7.21</dubbo.version>
     </properties>
 
     <dependencies>
diff --git a/dubbodemo_cloud_toolkit/pom.xml b/dubbodemo_cloud_toolkit/pom.xml
index 5f5b2cd..00235aa 100644
--- a/dubbodemo_cloud_toolkit/pom.xml
+++ b/dubbodemo_cloud_toolkit/pom.xml
@@ -41,7 +41,7 @@
             <dependency>
                 <groupId>org.apache.dubbo</groupId>
                 <artifactId>dubbo</artifactId>
-                <version>2.7.15</version>
+                <version>2.7.21</version>
                 <exclusions>
                     <exclusion>
                         <groupId>org.springframework</groupId>