diff --git a/pom.xml b/pom.xml
index 53821a13..f2f47f8b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -124,7 +124,7 @@
 
         <!-- UML -->
         <version.plantuml-maven-plugin>1.5.2</version.plantuml-maven-plugin>
-        <version.plantuml-maven-plugin.plantuml>1.2022.14</version.plantuml-maven-plugin.plantuml>
+        <version.plantuml-maven-plugin.plantuml>1.2023.9</version.plantuml-maven-plugin.plantuml>
 
         <version.maven-invoker-plugin>3.4.0</version.maven-invoker-plugin>
         <version.maven-clean-plugin>3.2.0</version.maven-clean-plugin>