diff --git a/springboot-webflux-10-book-manage-sys/pom.xml b/springboot-webflux-10-book-manage-sys/pom.xml
index 4a99ddd..90f521f 100644
--- a/springboot-webflux-10-book-manage-sys/pom.xml
+++ b/springboot-webflux-10-book-manage-sys/pom.xml
@@ -53,7 +53,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.12</version>
+      <version>4.13.1</version>
     </dependency>
   </dependencies>