diff --git a/pom.xml b/pom.xml
index 15b28152..cafe3ea4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -282,7 +282,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-core</artifactId>
-            <version>1.2.3</version>
+            <version>1.2.9</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/log4j/log4j -->