diff --git a/04_Building_Convolutional_Neural_Networks/sourceCode/cookbookapp/pom.xml b/04_Building_Convolutional_Neural_Networks/sourceCode/cookbookapp/pom.xml
index 5d58964..810f726 100644
--- a/04_Building_Convolutional_Neural_Networks/sourceCode/cookbookapp/pom.xml
+++ b/04_Building_Convolutional_Neural_Networks/sourceCode/cookbookapp/pom.xml
@@ -72,7 +72,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.11</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>