diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 2a74b56..6e7ef7d
--- a/pom.xml
+++ b/pom.xml
@@ -14,7 +14,7 @@
         <springframework.version>4.2.4.RELEASE</springframework.version>
         <springsecurity.version>4.2.4.RELEASE</springsecurity.version>
         <springsecurityoauth2.version>2.0.10.RELEASE</springsecurityoauth2.version>
-        <jackson.library>2.7.5</jackson.library>
+        <jackson.library>2.12.1</jackson.library>
         <skipTests>true</skipTests>
     </properties>