diff --git a/khkw/No40-Business-data/pom.xml b/khkw/No40-Business-data/pom.xml
index 2fd0923..022a5b0 100644
--- a/khkw/No40-Business-data/pom.xml
+++ b/khkw/No40-Business-data/pom.xml
@@ -17,7 +17,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
+            <version>1.3.12</version>
         </dependency>
         <dependency>
             <groupId>log4j</groupId>