diff --git a/SpringInner/pom.xml b/SpringInner/pom.xml
index 4f380ec..146fb1a 100644
--- a/SpringInner/pom.xml
+++ b/SpringInner/pom.xml
@@ -13,7 +13,7 @@
 	<url>http://maven.apache.org</url>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<spring.version>5.1.7.RELEASE</spring.version>
+		<spring.version>5.2.21.RELEASE</spring.version>
 		<log4j2.version>2.11.2</log4j2.version>
 		<commons-lang.version>3.9</commons-lang.version>
 	</properties>