Added Maven Central repository explicitly
diff --git a/hivesterix/pom.xml b/hivesterix/pom.xml
index ba43c0d..d94596e 100644
--- a/hivesterix/pom.xml
+++ b/hivesterix/pom.xml
@@ -93,6 +93,10 @@
 	</distributionManagement>
 
 	<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>
diff --git a/hyracks/pom.xml b/hyracks/pom.xml
index a4a54f2..68259e3 100644
--- a/hyracks/pom.xml
+++ b/hyracks/pom.xml
@@ -65,6 +65,10 @@
 
   <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>
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>
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>