diff --git a/my-io/pom.xml b/my-io/pom.xml
old mode 100755
new mode 100644
index 85cb46b..8052762
--- a/my-io/pom.xml
+++ b/my-io/pom.xml
@@ -15,7 +15,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
         </dependency>
     </dependencies>