diff --git a/pom.xml b/pom.xml
index 6fa3b03..e147095 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,19 +10,23 @@
     <maven.compiler.target>1.6</maven.compiler.target>
     <encoding>UTF-8</encoding>
     <scala.tools.version>2.11</scala.tools.version>
-    <scala.version>2.11.6</scala.version>
+    <scala.version>2.11.8</scala.version>
+            <spark.version>2.4.2</spark.version>
+        <scala.spark.version>2.11</scala.spark.version>
   </properties>
   <dependencies>
-    <dependency>
-      <groupId>org.apache.spark</groupId>
-      <artifactId>spark-core_2.11</artifactId>
-      <version>2.1.1</version>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.spark</groupId>
-      <artifactId>spark-mllib_2.11</artifactId>
-      <version>2.1.1</version>
-    </dependency>
+        <dependency>
+            <groupId>org.apache.spark</groupId>
+            <artifactId>spark-core_${scala.spark.version}</artifactId>
+            <version>${spark.version}</version>
+            <!--      <scope>provided</scope>-->
+        </dependency>
+        <dependency>
+            <groupId>org.apache.spark</groupId>
+            <artifactId>spark-mllib_${scala.spark.version}</artifactId>
+            <version>${spark.version}</version>
+            <!--      <scope>provided</scope>-->
+        </dependency>
     <dependency>
       <groupId>org.scala-lang</groupId>
       <artifactId>scala-library</artifactId>
diff --git a/src/main/scala/org/apache/spark/ml/feature/MDLPDiscretizer.scala b/src/main/scala/org/apache/spark/ml/feature/MDLPDiscretizer.scala
index 73ebb4e..dc5d896 100644
--- a/src/main/scala/org/apache/spark/ml/feature/MDLPDiscretizer.scala
+++ b/src/main/scala/org/apache/spark/ml/feature/MDLPDiscretizer.scala
@@ -260,7 +260,7 @@ object DiscretizerModel extends MLReadable[DiscretizerModel] {
             .select("splits")
             .head()
       val model = new DiscretizerModel(metadata.uid, splits)
-      DefaultParamsReader.getAndSetParams(model, metadata)
+      metadata.getAndSetParams(model)
       model
     }
   }
diff --git a/src/test/scala/org/apache/spark/ml/feature/TestHelper.scala b/src/test/scala/org/apache/spark/ml/feature/TestHelper.scala
index fd82aa3..97553d1 100644
--- a/src/test/scala/org/apache/spark/ml/feature/TestHelper.scala
+++ b/src/test/scala/org/apache/spark/ml/feature/TestHelper.scala
@@ -37,6 +37,8 @@ object TestHelper {
     val featureAssembler = new VectorAssembler()
       .setInputCols(inputCols)
       .setOutputCol("features")
+      .setHandleInvalid("keep")
+
     val processedDf = featureAssembler.transform(dataframe)
 
     val discretizer = new MDLPDiscretizer()
diff --git a/src/test/scala/org/apache/spark/ml/feature/ThresholdFinderSuite.scala b/src/test/scala/org/apache/spark/ml/feature/ThresholdFinderSuite.scala
index 3df75c8..5f693f4 100644
--- a/src/test/scala/org/apache/spark/ml/feature/ThresholdFinderSuite.scala
+++ b/src/test/scala/org/apache/spark/ml/feature/ThresholdFinderSuite.scala
@@ -1,6 +1,6 @@
 package org.apache.spark.ml.feature
 
-import org.apache.spark.mllib.feature.{BucketInfo, FeatureUtils, ThresholdFinder}
+import org.apache.spark.mllib.feature.{BucketInfo, ThresholdFinder}
 import org.apache.spark.sql.SQLContext
 import org.junit.runner.RunWith
 import org.scalatest.{BeforeAndAfterAll, FunSuite}