diff --git a/pom.xml b/pom.xml
index 98e4663..cf0876e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -116,7 +116,7 @@
             <dependency>
                 <groupId>ch.qos.logback</groupId>
                 <artifactId>logback-classic</artifactId>
-                <version>1.6.3</version>
+                <version>1.6.4</version>
             </dependency>
             <dependency>
                 <groupId>org.apache.commons</groupId>