diff --git a/mleap-xgboost-runtime/src/main/scala/ml/combust/mleap/xgboost/runtime/XgbConverters.scala b/mleap-xgboost-runtime/src/main/scala/ml/combust/mleap/xgboost/runtime/XgbConverters.scala
index 673381e6f..4f2a17419 100644
--- a/mleap-xgboost-runtime/src/main/scala/ml/combust/mleap/xgboost/runtime/XgbConverters.scala
+++ b/mleap-xgboost-runtime/src/main/scala/ml/combust/mleap/xgboost/runtime/XgbConverters.scala
@@ -13,10 +13,10 @@ trait XgbConverters {
     def asXGB: DMatrix = {
       vector match {
         case SparseVector(_, indices, values) =>
-          new DMatrix(Iterator(new LabeledPoint(0.0f, indices, values.map(_.toFloat))))
+          new DMatrix(Iterator(new LabeledPoint(0.0f, indices.length, indices, values.map(_.toFloat))))
 
         case DenseVector(values) =>
-          new DMatrix(Iterator(new LabeledPoint(0.0f, null, values.map(_.toFloat))))
+          new DMatrix(Iterator(new LabeledPoint(0.0f, values.length, null, values.map(_.toFloat))))
       }
     }
 
@@ -34,10 +34,12 @@ trait XgbConverters {
     def asXGB: DMatrix = {
       tensor match {
         case SparseTensor(indices, values, _) =>
-          new DMatrix(Iterator(new LabeledPoint(0.0f, indices.map(_.head).toArray, values.map(_.toFloat))))
+          new DMatrix(Iterator(
+            new LabeledPoint(0.0f, indices.length, indices.map(_.head).toArray, values.map(_.toFloat))))
 
         case DenseTensor(_, _) =>
-          new DMatrix(Iterator(new LabeledPoint(0.0f, null, tensor.toDense.rawValues.map(_.toFloat))))
+          new DMatrix(Iterator(
+            new LabeledPoint(0.0f, tensor.size, null, tensor.toDense.rawValues.map(_.toFloat))))
       }
     }
 
diff --git a/project/Common.scala b/project/Common.scala
index 018ae14d2..ec70fd883 100644
--- a/project/Common.scala
+++ b/project/Common.scala
@@ -23,6 +23,7 @@ object Common {
     javaOptions in test += sys.env.getOrElse("JVM_OPTS", ""),
     resolvers += Resolver.mavenLocal,
     resolvers += Resolver.jcenterRepo,
+    resolvers += "XGBoost4J Release Repo" at "https://s3-us-west-2.amazonaws.com/xgboost-maven-repo/release",
     resolvers ++= {
       // Only add Sonatype Snapshots if this version itself is a snapshot version
       if(isSnapshot.value) {
diff --git a/project/plugins.sbt b/project/plugins.sbt
index d01a8ddac..bc96542bf 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -9,6 +9,7 @@ addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.6.1")
 addSbtPlugin("com.typesafe.sbt" % "sbt-git" % "0.9.3")
 addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.14.7")
 addSbtPlugin("net.virtual-void" % "sbt-dependency-graph" % "0.10.0-RC1")
+addSbtPlugin("com.frugalmechanic" % "fm-sbt-s3-resolver" % "0.19.0")
 
 
 libraryDependencies += "com.thesamet.scalapb" %% "compilerplugin" % "0.7.1"