diff --git a/pom.xml b/pom.xml
index 5ce18f5..a905eb8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -83,7 +83,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.4.14</version>
+      <version>1.5.6</version>
       <exclusions>
         <exclusion>
           <groupId>com.sun.mail</groupId>