diff --git a/docs/day3/CD/code/batta/pom.xml b/docs/day3/CD/code/batta/pom.xml
index 92f74c7..d66b32f 100644
--- a/docs/day3/CD/code/batta/pom.xml
+++ b/docs/day3/CD/code/batta/pom.xml
@@ -39,7 +39,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>