diff --git a/kvs/YCSB/YCSB/mongodb/pom.xml b/kvs/YCSB/YCSB/mongodb/pom.xml
old mode 100755
new mode 100644
index b8e85dc..7a2ff0b
--- a/kvs/YCSB/YCSB/mongodb/pom.xml
+++ b/kvs/YCSB/YCSB/mongodb/pom.xml
@@ -57,7 +57,7 @@ LICENSE file.
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.12</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>