diff --git a/vertx-backend/pom.xml b/vertx-backend/pom.xml
old mode 100755
new mode 100644
index 418ca2f..b460ad5
--- a/vertx-backend/pom.xml
+++ b/vertx-backend/pom.xml
@@ -17,7 +17,7 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>     
         <netflix.feign.version>8.18.0</netflix.feign.version>
-        <vertx.version>3.4.1</vertx.version>
+        <vertx.version>3.9.4</vertx.version>
         <hystrix.version>1.5.6</hystrix.version>
         <version.exec.plugin>1.4.0</version.exec.plugin>
         <brave.version>3.7.0</brave.version>