[MPOM-107] Upgrade to ASF Parent 18

git-svn-id: https://svn.apache.org/repos/asf/maven/pom/trunk@1744642 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/maven/pom.xml b/maven/pom.xml
index ee526d1..fd7a7a7 100644
--- a/maven/pom.xml
+++ b/maven/pom.xml
@@ -27,7 +27,7 @@
   <parent>
     <groupId>org.apache</groupId>
     <artifactId>apache</artifactId>
-    <version>18-SNAPSHOT</version>
+    <version>18</version>
     <relativePath>../asf/pom.xml</relativePath>
   </parent>