diff --git a/pom.xml b/pom.xml
index bd5eabf..444201b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -84,7 +84,7 @@
 
 		<!-- UML -->
 		<version.plantuml-maven-plugin>1.5.2</version.plantuml-maven-plugin>
-		<version.net.sourceforge.plantuml>1.2022.12</version.net.sourceforge.plantuml>
+		<version.net.sourceforge.plantuml>1.2023.9</version.net.sourceforge.plantuml>
 
 		<version.maven-invoker-plugin>3.3.0</version.maven-invoker-plugin>
 		<version.maven-clean-plugin>3.2.0</version.maven-clean-plugin>