diff --git a/util/clustersim-gui/lib/libconfig-master/libconfig/pom.xml b/util/clustersim-gui/lib/libconfig-master/libconfig/pom.xml
index 755dbd8..96b7252 100644
--- a/util/clustersim-gui/lib/libconfig-master/libconfig/pom.xml
+++ b/util/clustersim-gui/lib/libconfig-master/libconfig/pom.xml
@@ -7,7 +7,7 @@
 
 	<properties>
 		<slf4j.version>1.7.5</slf4j.version>
-		<logback.version>1.0.13</logback.version>
+		<logback.version>1.2.0</logback.version>
 		<testng.version>6.8.5</testng.version>
 	</properties>