diff --git a/springboot_worker_multi_masterslave_hash/pom.xml b/springboot_worker_multi_masterslave_hash/pom.xml
index b382dfa..7debbe3 100644
--- a/springboot_worker_multi_masterslave_hash/pom.xml
+++ b/springboot_worker_multi_masterslave_hash/pom.xml
@@ -44,7 +44,7 @@
 	    <dependency>  
 	        <groupId>mysql</groupId>  
 	        <artifactId>mysql-connector-java</artifactId>  
-	        <version>8.0.16</version>
+	        <version>8.0.28</version>
 	    </dependency> 
 	    
 	    <dependency>