diff --git a/kvs/YCSB/YCSB/cassandra2/pom.xml b/kvs/YCSB/YCSB/cassandra2/pom.xml
old mode 100755
new mode 100644
index 28a843b..a762c72
--- a/kvs/YCSB/YCSB/cassandra2/pom.xml
+++ b/kvs/YCSB/YCSB/cassandra2/pom.xml
@@ -59,7 +59,7 @@ LICENSE file.
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.12</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>