diff --git a/.gitignore b/.gitignore
index 7bc8b82..8f9609c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
-target/**
-.idea/**
-project/target/**
-project/project/**
+target
+.idea
+.bloop
+.metals
diff --git a/.travis.yml b/.travis.yml
index 56f3090..03f3b29 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,12 +1,10 @@
 language: scala
-scala:
-  - 2.12.8
 
 jdk:
-  - openjdk11 
+  - openjdk11
 
 script:
-  - sbt clean coverage test coverageReport
+  - sbt clean coverage +test coverageReport
 
 after_success:
   - bash <(curl -s https://codecov.io/bash) -t "4b854b7d-2c0e-42b8-80dd-4d2bd4a60535"
diff --git a/build.sbt b/build.sbt
index 10b1dea..7e228b4 100644
--- a/build.sbt
+++ b/build.sbt
@@ -2,9 +2,11 @@ lazy val commonSettings = Seq(
   organization := "com.madewithtea",
   version := "3.5.0",
   scalaVersion := "2.12.10",
+  crossScalaVersions := List("2.12.10", "2.13.1"),
   description := "Topology Unit-Testing Library for Kafka Streams",
   organizationHomepage := Some(url("https://www.madewithtea.com")),
-  scalacOptions := Seq("-Xexperimental"))
+  scalacOptions := Seq("-Xexperimental")
+)
 
 val scalaTestVersion = "3.0.8"
 val rocksDBVersion = "5.18.3"
@@ -22,9 +24,9 @@ lazy val kafka = Seq(
 lazy val scalaTest = "org.scalatest" %% "scalatest" % scalaTestVersion % "test"
 lazy val rocksDB = "org.rocksdb" % "rocksdbjni" % rocksDBVersion % "test"
 
-lazy val mockedstreams = (project in file(".")).
-  settings(commonSettings: _*).
-  settings(
+lazy val mockedstreams = (project in file("."))
+  .settings(commonSettings: _*)
+  .settings(
     libraryDependencies ++= Seq(
       scalaTest,
       rocksDB
@@ -43,7 +45,9 @@ publishMavenStyle := true
 
 publishArtifact in Test := false
 
-pomIncludeRepository := { _ => false }
+pomIncludeRepository := { _ =>
+  false
+}
 
 pomExtra :=
   <url>https://www.madewithtea.com/pages/mocked-streams.html</url>
@@ -62,7 +66,6 @@ pomExtra :=
       </developer>
     </developers>
 
-
 micrositeName := "Mocked Streams"
 micrositeDescription := "Unit-Testing Topologies in Kafka Streams"
 micrositeUrl := "http://mockedstreams.madewithtea.com"
@@ -78,7 +81,7 @@ micrositeTwitterCreator := "@madewithtea"
 micrositeCompilingDocsTool := WithMdoc
 micrositeShareOnSocial := true
 
-lazy val docs = project       // new documentation project
+lazy val docs = project // new documentation project
   .in(file("ms-docs")) // important: it must not be docs/
   .dependsOn(mockedstreams)
   .enablePlugins(MdocPlugin)
diff --git a/project/build.properties b/project/build.properties
index c0bab04..00b48d9 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.2.8
+sbt.version=1.3.6
diff --git a/project/plugins.sbt b/project/plugins.sbt
index dc1784d..7150ba2 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,5 +1,5 @@
-addSbtPlugin("org.scoverage" % "sbt-scoverage" % "1.5.1")
-addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.0") 
+addSbtPlugin("org.scoverage" % "sbt-scoverage" % "1.6.1")
+addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.0")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.0.0")
-addSbtPlugin("com.47deg"  % "sbt-microsites" % "0.9.2")
-addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.0.2" )
+addSbtPlugin("com.47deg" % "sbt-microsites" % "1.0.1")
+addSbtPlugin("org.scalameta" % "sbt-mdoc" % "2.0.2")