diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 3fd7191..8cc03ff
--- a/pom.xml
+++ b/pom.xml
@@ -14,7 +14,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <version.java>1.8</version.java>
         <version.activiti>5.22.0</version.activiti>
-        <version.jackson>2.9.9</version.jackson>
+        <version.jackson>2.9.10.8</version.jackson>
         <version.undertow>1.4.24.Final</version.undertow>
         <version.spring>4.3.24.RELEASE</version.spring>
     </properties>