Added Maven Central repository explicitly
diff --git a/pom.xml b/pom.xml
index a851758..72c9e77 100644
--- a/pom.xml
+++ b/pom.xml
@@ -58,6 +58,10 @@
 
   <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>