diff --git a/pom.xml b/pom.xml
index 94f98c8..3a1eb8b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -35,7 +35,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
+            <version>1.2.13</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/com.googlecode.json-simple/json-simple -->