diff --git a/calendar/sync/pom.xml b/calendar/sync/pom.xml
index af98470ce..c693e7071 100644
--- a/calendar/sync/pom.xml
+++ b/calendar/sync/pom.xml
@@ -47,7 +47,7 @@
             <plugin>
                 <groupId>org.codehaus.mojo</groupId>
                 <artifactId>exec-maven-plugin</artifactId>
-                <version>3.1.0</version>
+                <version>3.6.3</version>
                 <executions>
                     <execution>
                         <goals>