diff --git a/concordion/pom.xml b/concordion/pom.xml
index 6a85c13b..1617f902 100644
--- a/concordion/pom.xml
+++ b/concordion/pom.xml
@@ -28,7 +28,7 @@
https://raw.githubusercontent.com/knaw-huc/checkstyle/master/checkstyle_config.xml
- 2.0.21
+ 4.0.2
3.9.1
2.33
2.5.0