diff --git a/examples/Chart-20/pom.xml b/examples/Chart-20/pom.xml
old mode 100755
new mode 100644
index bdf1b3b..8bfb845
--- a/examples/Chart-20/pom.xml
+++ b/examples/Chart-20/pom.xml
@@ -109,7 +109,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.12</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>