diff --git a/pom.xml b/pom.xml
index 5eb9c2f..3924c78 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
 	<url>http://maven.apache.org</url>
 	<properties>
 		<!-- spring version -->
-		<spring.version>4.3.18.RELEASE</spring.version>
+		<spring.version>5.2.20.RELEASE</spring.version>
 		<slf4j.version>1.7.7</slf4j.version>
 		<log4j.version>1.2.17</log4j.version>
 	</properties>