diff --git a/async-program-demo/Second-Chapter/pom.xml b/async-program-demo/Second-Chapter/pom.xml
index 9ad5810..6e3de5b 100644
--- a/async-program-demo/Second-Chapter/pom.xml
+++ b/async-program-demo/Second-Chapter/pom.xml
@@ -19,7 +19,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>3.8.1</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>