Added Maven Central repository explicitly
diff --git a/pregelix/pom.xml b/pregelix/pom.xml
index d748d1f..9b5c218 100644
--- a/pregelix/pom.xml
+++ b/pregelix/pom.xml
@@ -79,6 +79,10 @@
 
   <repositories>
     <repository>
+      <id>maven-central</id>
+      <url>http://repo1.maven.org/maven2/</url>
+    </repository>
+    <repository>
       <id>hyracks-public</id>
       <url>http://obelix.ics.uci.edu/nexus/content/groups/hyracks-public/</url>
     </repository>