diff --git a/pom.xml b/pom.xml
index ed4b556a..848097c0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -175,7 +175,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.5.8</version>
+            <version>1.5.9</version>
         </dependency>
         <!-- io -->
         <dependency>