diff --git a/ZooKeeper/pom.xml b/ZooKeeper/pom.xml
index 796710c..695becb 100644
--- a/ZooKeeper/pom.xml
+++ b/ZooKeeper/pom.xml
@@ -10,7 +10,7 @@
     <description>Distributed System Dynamic Manager Based on ZooKeeper</description>
 
     <properties>
-        <jackson.version>2.12.1</jackson.version>
+        <jackson.version>2.12.7.1</jackson.version>
         <log4j.version>2.11.2</log4j.version>
     </properties>