diff --git a/JavaLearn/pom.xml b/JavaLearn/pom.xml
index 9efe34a..764aa70 100644
--- a/JavaLearn/pom.xml
+++ b/JavaLearn/pom.xml
@@ -97,7 +97,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>4.13.1</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/io.netty/netty-all -->