diff --git a/ssmlearn/background/tmall_ssm/pom.xml b/ssmlearn/background/tmall_ssm/pom.xml
index 3f567e1..81e05ee 100644
--- a/ssmlearn/background/tmall_ssm/pom.xml
+++ b/ssmlearn/background/tmall_ssm/pom.xml
@@ -7,7 +7,7 @@
   <packaging>war</packaging>
 
   <properties>
-    <spring.version>4.1.3.RELEASE</spring.version>
+    <spring.version>5.2.20.RELEASE</spring.version>
     <pagehelper.version>5.1.2-beta</pagehelper.version>
     <mysql.version>5.1.6</mysql.version>
     <mybatis.spring.version>1.2.3</mybatis.spring.version>