diff --git a/example-jaeger-opentracing-tutorial-004/pom.xml b/example-jaeger-opentracing-tutorial-004/pom.xml
index f5c0434..fa03c11 100644
--- a/example-jaeger-opentracing-tutorial-004/pom.xml
+++ b/example-jaeger-opentracing-tutorial-004/pom.xml
@@ -49,7 +49,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
+            <version>1.3.12</version>
         </dependency>