diff --git a/jsystem-parent/pom.xml b/jsystem-parent/pom.xml
index 2461463c..3e006db5 100644
--- a/jsystem-parent/pom.xml
+++ b/jsystem-parent/pom.xml
@@ -129,7 +129,7 @@
 			<dependency>
 				<groupId>commons-net</groupId>
 				<artifactId>commons-net</artifactId>
-				<version>3.1</version>
+				<version>3.9.0</version>
 			</dependency>
 			<dependency>
 				<groupId>ch.ethz.ganymed</groupId>