diff --git a/Java/main-sample/pom.xml b/Java/main-sample/pom.xml
index 320e3b2..3e71a1c 100644
--- a/Java/main-sample/pom.xml
+++ b/Java/main-sample/pom.xml
@@ -109,7 +109,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-core</artifactId>
-            <version>1.1.5</version>
+            <version>1.2.9</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>