diff --git a/pom.xml b/pom.xml
index e8038bce..ea9fc1f6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -322,7 +322,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.5.1</version>
+            <version>1.5.6</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>