diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 6293693..2e2e0be
--- a/pom.xml
+++ b/pom.xml
@@ -86,7 +86,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.2.3</version>
+      <version>1.2.13</version>
     </dependency>
   </dependencies>
 </project>