diff --git a/pom.xml b/pom.xml
index 85083c8..7722921 100644
--- a/pom.xml
+++ b/pom.xml
@@ -66,7 +66,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-core</artifactId>
-            <version>1.2.3</version>
+            <version>1.2.9</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>