diff --git a/JSONStudy/JSONLibDemo/pom.xml b/JSONStudy/JSONLibDemo/pom.xml
index c31d8e1..bb7e20a 100644
--- a/JSONStudy/JSONLibDemo/pom.xml
+++ b/JSONStudy/JSONLibDemo/pom.xml
@@ -15,7 +15,7 @@
         <!-- fastjson -->
         <fastjson.version>1.2.47</fastjson.version>
         <!-- jackson -->
-        <jackson.version>2.4.1</jackson.version>
+        <jackson.version>2.12.7.1</jackson.version>
         <!-- junit -->
         <junit.version>4.12</junit.version>
     </properties>