diff --git a/vertx-backend/pom.xml b/vertx-backend/pom.xml
old mode 100755
new mode 100644
index 418ca2f..8a5ebbe
--- a/vertx-backend/pom.xml
+++ b/vertx-backend/pom.xml
@@ -29,7 +29,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.42</version>
+            <version>8.0.16</version>
         </dependency>        
         <dependency>
             <groupId>org.projectlombok</groupId>