diff --git a/introduction/helloworld/pom.xml b/introduction/helloworld/pom.xml
index 9da2a1c..f5a60a2 100644
--- a/introduction/helloworld/pom.xml
+++ b/introduction/helloworld/pom.xml
@@ -27,7 +27,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
+            <version>1.2.13</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>