diff --git "a/\345\271\266\345\217\221\347\274\226\347\250\213\344\273\243\347\240\201/concurrent/case_java8/pom.xml" "b/\345\271\266\345\217\221\347\274\226\347\250\213\344\273\243\347\240\201/concurrent/case_java8/pom.xml"
index 716a05e..508274e 100644
--- "a/\345\271\266\345\217\221\347\274\226\347\250\213\344\273\243\347\240\201/concurrent/case_java8/pom.xml"
+++ "b/\345\271\266\345\217\221\347\274\226\347\250\213\344\273\243\347\240\201/concurrent/case_java8/pom.xml"
@@ -30,7 +30,7 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-webmvc</artifactId>
-            <version>5.2.0.RELEASE</version>
+            <version>5.2.20.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>