diff --git a/core/pom.xml b/core/pom.xml
index 6204588..4f73e99 100644
--- a/core/pom.xml
+++ b/core/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>
         <dependency>
             <groupId>org.freemarker</groupId>