diff --git a/build.sbt b/build.sbt
index fb019dd..3432c73 100644
--- a/build.sbt
+++ b/build.sbt
@@ -13,9 +13,9 @@ licenses := Seq(
 
 organization := "io.github.cloudify"
 
-scalaVersion := "2.12.0"
+scalaVersion := "2.13.0"
 
-crossScalaVersions := Seq("2.10.6", "2.11.8", "2.12.0")
+crossScalaVersions := Seq("2.10.6", "2.11.8", "2.12.0", "2.13.0")
 
 releaseCrossBuild := true
 
@@ -46,8 +46,8 @@ libraryDependencies := {
   CrossVersion.partialVersion(scalaVersion.value) match {
     case Some((2, scalaMajor)) if scalaMajor >= 11 =>
       libraryDependencies.value ++ Seq(
-        "org.scala-lang.modules" %% "scala-xml" % "1.0.6",
-        "org.scala-lang.modules" %% "scala-parser-combinators" % "1.0.4"
+        "org.scala-lang.modules" %% "scala-xml" % "1.2.0",
+        "org.scala-lang.modules" %% "scala-parser-combinators" % "1.1.2"
       )
     case _ =>
       libraryDependencies.value
@@ -55,7 +55,7 @@ libraryDependencies := {
 }
 
 libraryDependencies ++= Seq (
-  "org.scalatest"   %% "scalatest"      % "3.0.0"   % "test",
+  "org.scalatest"   %% "scalatest"      % "3.0.8"   % "test",
   "org.mockito"     %  "mockito-all"    % "1.10.8"  % "test"
 )
 
diff --git a/src/test/scala/io/github/cloudify/scala/spdf/DestinationDocumentLikeSpec.scala b/src/test/scala/io/github/cloudify/scala/spdf/DestinationDocumentLikeSpec.scala
index 66e876c..185d486 100644
--- a/src/test/scala/io/github/cloudify/scala/spdf/DestinationDocumentLikeSpec.scala
+++ b/src/test/scala/io/github/cloudify/scala/spdf/DestinationDocumentLikeSpec.scala
@@ -4,7 +4,7 @@ import java.io.{OutputStream, ByteArrayOutputStream, File}
 import io.github.cloudify.scala.spdf.DestinationDocumentLike.{OutputStreamDestinationDocument, FileDestinationDocument}
 import scala.sys.process._
 import org.scalatest.WordSpec
-import org.scalatest.mockito.MockitoSugar
+import org.scalatestplus.mockito.MockitoSugar
 import org.scalatest.Matchers
 
 class DestinationDocumentLikeSpec extends WordSpec with Matchers with MockitoSugar {
@@ -15,11 +15,11 @@ class DestinationDocumentLikeSpec extends WordSpec with Matchers with MockitoSug
 
   "DestinationDocumentLike" should {
     "set commandParameter to -" in {
-      new DestinationDocumentLike[Unit] {}.commandParameter(Unit) should equal("-")
+      new DestinationDocumentLike[Unit] {}.commandParameter(()) should equal("-")
     }
 
     "leave process untouched" in new catProcess {
-      new DestinationDocumentLike[Unit] {}.sinkTo(Unit)(process) should equal(process)
+      new DestinationDocumentLike[Unit] {}.sinkTo(())(process) should equal(process)
     }
   }
 
diff --git a/src/test/scala/io/github/cloudify/scala/spdf/SourceDocumentLikeSpec.scala b/src/test/scala/io/github/cloudify/scala/spdf/SourceDocumentLikeSpec.scala
index b292871..59cedf1 100644
--- a/src/test/scala/io/github/cloudify/scala/spdf/SourceDocumentLikeSpec.scala
+++ b/src/test/scala/io/github/cloudify/scala/spdf/SourceDocumentLikeSpec.scala
@@ -6,7 +6,7 @@ import java.io.{ File, ByteArrayInputStream }
 import java.net.URL
 import org.scalatest.WordSpec
 import org.scalatest.Matchers
-import org.scalatest.mockito.MockitoSugar
+import org.scalatestplus.mockito.MockitoSugar
 
 class SourceDocumentLikeSpec extends WordSpec with Matchers with MockitoSugar {
 
@@ -43,11 +43,11 @@ class SourceDocumentLikeSpec extends WordSpec with Matchers with MockitoSugar {
   "SourceDocumentLike" should {
 
     "set commandParameter to -" in {
-      new SourceDocumentLike[Unit] {}.commandParameter(Unit) should equal("-")
+      new SourceDocumentLike[Unit] {}.commandParameter(()) should equal("-")
     }
 
     "leave process untouched" in {
-      new SourceDocumentLike[Unit] {}.sourceFrom(Unit)(catProcess) should equal(catProcess)
+      new SourceDocumentLike[Unit] {}.sourceFrom(())(catProcess) should equal(catProcess)
     }
 
   }