diff --git a/mio-parent/pom.xml b/mio-parent/pom.xml
index 3966c70..adc73d7 100644
--- a/mio-parent/pom.xml
+++ b/mio-parent/pom.xml
@@ -22,7 +22,7 @@
         <mysql.version>5.1.32</mysql.version>
         <oracle.version>10.2.0.1.0</oracle.version>
         <slf4j.version>1.6.4</slf4j.version>
-        <jackson.version>2.7.4</jackson.version>
+        <jackson.version>2.12.1</jackson.version>
         <druid.version>1.0.9</druid.version>
         <httpclient.version>4.5.6</httpclient.version>
         <jstl.version>1.2</jstl.version>