diff --git a/designpattern/pom.xml b/designpattern/pom.xml
index 7f38402..d48a306 100644
--- a/designpattern/pom.xml
+++ b/designpattern/pom.xml
@@ -16,7 +16,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.12</version>
+      <version>4.13.1</version>
       <!-- <scope>test</scope> -->
     </dependency>
     <dependency>