diff --git a/springwebsocketsample/pom.xml b/springwebsocketsample/pom.xml
index 2bf13f9..3b341c6 100644
--- a/springwebsocketsample/pom.xml
+++ b/springwebsocketsample/pom.xml
@@ -17,7 +17,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
-        <spring.version>5.1.6.RELEASE</spring.version>
+        <spring.version>5.2.20.RELEASE</spring.version>
         <!--logging-->
         <org.slf4j-version>1.6.6</org.slf4j-version>
     </properties>