diff --git a/sample-maven/pom.xml b/sample-maven/pom.xml
index 5291282..7ca5eba 100644
--- a/sample-maven/pom.xml
+++ b/sample-maven/pom.xml
@@ -30,7 +30,7 @@
             <plugin>
                 <groupId>org.dddjava.jig</groupId>
                 <artifactId>jig-maven-plugin</artifactId>
-                <version>2026.4.1</version>
+                <version>2026.5.4</version>
                 <configuration>
                     <domainPattern>.*</domainPattern>
                 </configuration>