diff --git a/pom.xml b/pom.xml
index aeb08bd2d9..3070370360 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
   <parent>
     <groupId>org.apache</groupId>
     <artifactId>apache</artifactId>
-    <version>21</version>
+    <version>18</version>
   </parent>
   <modelVersion>4.0.0</modelVersion>