diff --git a/pom.xml b/pom.xml
index 13b4d98..9bb5d8f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -81,7 +81,7 @@
 		<dependency>
 			<groupId>net.sourceforge.plantuml</groupId>
 			<artifactId>plantuml</artifactId>
-			<version>1.2020.15</version>
+			<version>1.2023.9</version>
 		</dependency>
 
 		<!-- https://mvnrepository.com/artifact/guru.nidi/graphviz-java -->