diff --git a/wss-agent-hash-calculator/pom.xml b/wss-agent-hash-calculator/pom.xml
index 82d7aaf6..9d50ee0d 100644
--- a/wss-agent-hash-calculator/pom.xml
+++ b/wss-agent-hash-calculator/pom.xml
@@ -66,7 +66,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
+            <version>1.4.7</version>
             <scope>provided</scope>
             <exclusions>
                 <exclusion>