diff --git a/pom.xml b/pom.xml
index d874f8c..047dc54 100644
--- a/pom.xml
+++ b/pom.xml
@@ -83,7 +83,7 @@
             <dependency>
                 <groupId>ch.qos.logback</groupId>
                 <artifactId>logback-core</artifactId>
-                <version>1.5.8</version>
+                <version>1.5.13</version>
             </dependency>
             <dependency>
                 <groupId>org.codehaus.groovy</groupId>