diff --git a/karatachi-example/pom.xml b/karatachi-example/pom.xml
index e9841ad..d9a27a7 100644
--- a/karatachi-example/pom.xml
+++ b/karatachi-example/pom.xml
@@ -14,7 +14,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>0.9.29</version>
+      <version>1.2.0</version>
     </dependency>
   </dependencies>
   <parent>