diff --git a/src/main/java/org/pgrserver/graph/MainGraph.java b/src/main/java/org/pgrserver/graph/MainGraph.java
index fbd48c4..af58544 100644
--- a/src/main/java/org/pgrserver/graph/MainGraph.java
+++ b/src/main/java/org/pgrserver/graph/MainGraph.java
@@ -151,7 +151,7 @@ public List<List<Integer>> tsp(List<List<Double>> inPoints) {
          */
         NearestNeighborHeuristicTSP<Integer, LabeledWeightedEdge> nnhTsp = 
                 new NearestNeighborHeuristicTSP<Integer, LabeledWeightedEdge>(
-                        new Integer(0));
+                        Integer.valueOf(0));
         
         GraphPath<Integer,LabeledWeightedEdge> path = nnhTsp.getTour(tspGraph);
         List<Integer> vertexList = path.getVertexList();