[master] upgrade Apache parent POM version

git-svn-id: https://svn.apache.org/repos/asf/velocity/maven/trunk@1763918 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom/pom.xml b/pom/pom.xml
index 9156043..cde8217 100644
--- a/pom/pom.xml
+++ b/pom/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <artifactId>apache</artifactId>
         <groupId>org.apache</groupId>
-        <version>10</version>
+        <version>18</version>
     </parent>
     <groupId>org.apache.velocity</groupId>
     <artifactId>velocity-master</artifactId>
@@ -200,4 +200,4 @@
             <archive>http://mail-archives.apache.org/mod_mbox/velocity-commits/</archive>
         </mailingList>
     </mailingLists>
-</project>
\ No newline at end of file
+</project>