diff --git a/acme4j-example/pom.xml b/acme4j-example/pom.xml
index 84d38e8b..b1207f44 100644
--- a/acme4j-example/pom.xml
+++ b/acme4j-example/pom.xml
@@ -38,7 +38,7 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>exec-maven-plugin</artifactId>
-                <version>1.6.0</version>
+                <version>3.0.0</version>
                 <executions>
                     <execution>
                         <goals>