diff --git a/duofei_study/pom.xml b/duofei_study/pom.xml
index 1b9ca73..cf6e37d 100644
--- a/duofei_study/pom.xml
+++ b/duofei_study/pom.xml
@@ -17,7 +17,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
         </dependency>
     </dependencies>