diff --git a/kvs/YCSB/YCSB/couchbase/pom.xml b/kvs/YCSB/YCSB/couchbase/pom.xml
old mode 100755
new mode 100644
index b321d27..f7858c8
--- a/kvs/YCSB/YCSB/couchbase/pom.xml
+++ b/kvs/YCSB/YCSB/couchbase/pom.xml
@@ -45,7 +45,7 @@ LICENSE file.
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.2.2</version>
+            <version>2.12.6.1</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>