diff --git a/build.gradle b/build.gradle
index e6e0d88..b754d56 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,7 +11,7 @@ mainClassName = 'org.magmaoffenburg.roboviz.MainKt'
 
 ext {
     jogl_version = '2.3.2'
-    log4j_version = '2.19.0'
+    log4j_version = '2.20.0'
 }
 
 subprojects {