Merge branch 'pr-1773'
diff --git a/pom.xml b/pom.xml
index 16f556f..2bfbb13 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
     <parent>
         <groupId>org.apache</groupId>
         <artifactId>apache</artifactId>
-        <version>21</version>
+        <version>27</version>
     </parent>
     <groupId>org.apache.tinkerpop</groupId>
     <artifactId>tinkerpop</artifactId>