diff --git a/pom.xml b/pom.xml
index 2c4fc6f..f71bd7b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -88,7 +88,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.4.14</version>
+      <version>1.5.6</version>
     </dependency>
     <dependency>
       <groupId>com.beust</groupId>