diff --git a/pom.xml b/pom.xml
index 1fdd6d0..b599e61 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <mysql.version>5.1.37</mysql.version>
-    <spring.version>4.3.17.RELEASE</spring.version>
+    <spring.version>5.2.20.RELEASE</spring.version>
     <lucene.version>4.4.0</lucene.version>
 
   </properties>