diff --git a/kafka-sample/spring/pom.xml b/kafka-sample/spring/pom.xml
index 2801be54..33b80935 100644
--- a/kafka-sample/spring/pom.xml
+++ b/kafka-sample/spring/pom.xml
@@ -24,7 +24,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.5.5</version>
+            <version>1.5.6</version>
         </dependency>
 
         <dependency>