diff --git a/build.sbt b/build.sbt
index 0eac781..35d0064 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,6 +1,6 @@
 import sbtcrossproject.CrossPlugin.autoImport.{crossProject, CrossType}
 
-scalaVersion in ThisBuild := "2.13.0"
+scalaVersion in ThisBuild := "2.13.3"
 
 crossScalaVersions in ThisBuild := Seq(scalaVersion.value, "2.12.8")
 
@@ -13,9 +13,10 @@ val library =
       name := "play-json-derived-codecs",
       libraryDependencies ++= Seq(
         "com.chuusai" %%% "shapeless" % "2.3.3",
-        "org.scalatest" %%% "scalatest" % "3.0.8" % Test,
-        "org.scalacheck" %%% "scalacheck" % "1.14.0" % Test,
-        "com.typesafe.play" %%% "play-json" % "2.8.0"
+        "org.scalatest" %%% "scalatest" % "3.2.3" % Test,
+        "org.scalacheck" %%% "scalacheck" % "1.15.2" % Test,
+        "org.scalatestplus" %%% "scalacheck-1-15" % "3.2.3.0" % Test,
+        "com.typesafe.play" %%% "play-json" % "2.9.2"
       ),
       publishTo := {
         val nexus = "https://oss.sonatype.org"
@@ -50,7 +51,7 @@ val library =
           "-Xlint"
         ) ++
         (CrossVersion.partialVersion(scalaVersion.value) match {
-          case Some((2, n)) if n >= 13 => Seq("-Xsource:2.14")
+          case Some((2, n)) if n >= 13 => Seq("-Xsource:3")
           case _ => Seq("-Yno-adapted-args", "-Ywarn-unused-import", "-Xfuture")
         })
       },
diff --git a/library/src/test/scala/julienrf/json/derived/DerivedOFormatSuite.scala b/library/src/test/scala/julienrf/json/derived/DerivedOFormatSuite.scala
index a5d8b69..1227ca2 100644
--- a/library/src/test/scala/julienrf/json/derived/DerivedOFormatSuite.scala
+++ b/library/src/test/scala/julienrf/json/derived/DerivedOFormatSuite.scala
@@ -2,15 +2,15 @@ package julienrf.json.derived
 
 import org.scalacheck.{Gen, Arbitrary}
 import org.scalacheck.Arbitrary.arbitrary
-import org.scalatest.FeatureSpec
-import org.scalatest.prop.Checkers
+import org.scalatest.featurespec.AnyFeatureSpec
+import org.scalatestplus.scalacheck.Checkers
 import play.api.libs.json.{JsNumber, Json, OFormat, OWrites, Reads, __}
 
-class DerivedOFormatSuite extends FeatureSpec with Checkers {
+class DerivedOFormatSuite extends AnyFeatureSpec with Checkers {
 
-  feature("encoding andThen decoding = identity") {
+  Feature("encoding andThen decoding = identity") {
 
-    scenario("product type") {
+    Scenario("product type") {
       case class Foo(s: String, i: Int)
       implicit val fooArbitrary: Arbitrary[Foo] =
         Arbitrary(for (s <- arbitrary[String]; i <- arbitrary[Int]) yield Foo(s, i))
@@ -18,14 +18,14 @@ class DerivedOFormatSuite extends FeatureSpec with Checkers {
       identityLaw[Foo]
     }
 
-    scenario("tuple type") {
+    Scenario("tuple type") {
       type Foo = (String, Int)
       implicit val fooFormat: OFormat[Foo] = oformat()
 
       identityLaw[Foo]
     }
 
-    scenario("sum types") {
+    Scenario("sum types") {
       sealed trait Foo
       case class Bar(x: Int) extends Foo
       case class Baz(s: String) extends Foo
@@ -54,7 +54,7 @@ class DerivedOFormatSuite extends FeatureSpec with Checkers {
       }
     }
 
-    scenario("recursive types") {
+    Scenario("recursive types") {
       sealed trait Tree
       case class Leaf(s: String) extends Tree
       case class Node(lhs: Tree, rhs: Tree) extends Tree
@@ -83,7 +83,7 @@ class DerivedOFormatSuite extends FeatureSpec with Checkers {
       }
     }
 
-    scenario("polylmorphic types") {
+    Scenario("polylmorphic types") {
       case class Quux[A](value: A)
       implicit val fooFormat: OFormat[Quux[Int]] = oformat()
       implicit val arbitraryFoo: Arbitrary[Quux[Int]] =
@@ -95,8 +95,8 @@ class DerivedOFormatSuite extends FeatureSpec with Checkers {
   def identityLaw[A](implicit reads: Reads[A], owrites: OWrites[A], arbA: Arbitrary[A]): Unit =
     check((a: A) => reads.reads(owrites.writes(a)).fold(_ => false, _ == a))
 
-  feature("default codecs represent sum types using nested JSON objects") {
-    scenario("default codecs represent sum types using nested JSON objects") {
+  Feature("default codecs represent sum types using nested JSON objects") {
+    Scenario("default codecs represent sum types using nested JSON objects") {
       sealed trait Foo
       case class Bar(x: Int) extends Foo
       case class Baz(s: String) extends Foo
@@ -105,8 +105,8 @@ class DerivedOFormatSuite extends FeatureSpec with Checkers {
     }
   }
 
-  feature("sum types JSON representation can be customized") {
-    scenario("sum types JSON representation can be customized") {
+  Feature("sum types JSON representation can be customized") {
+    Scenario("sum types JSON representation can be customized") {
       sealed trait Foo
       case class Bar(x: Int) extends Foo
       case class Baz(s: String) extends Foo
@@ -115,25 +115,25 @@ class DerivedOFormatSuite extends FeatureSpec with Checkers {
     }
   }
 
-  feature("case classes can have optional values") {
+  Feature("case classes can have optional values") {
     case class Foo(s: Option[String])
     implicit val fooFormat: OFormat[Foo] = oformat()
     implicit val arbitraryFoo: Arbitrary[Foo] =
       Arbitrary(for (s <- arbitrary[Option[String]]) yield Foo(s))
 
-    scenario("identity law") {
+    Scenario("identity law") {
       identityLaw[Foo]
     }
 
-    scenario("Missing fields are successfully decoded as `None`") {
+    Scenario("Missing fields are successfully decoded as `None`") {
       assert(fooFormat.reads(Json.obj()).asOpt.contains(Foo(None)))
     }
 
-    scenario("Wrong fields are errors") {
+    Scenario("Wrong fields are errors") {
       assert(fooFormat.reads(Json.obj("s" -> 42)).asOpt.isEmpty)
     }
 
-    scenario("Nested objects") {
+    Scenario("Nested objects") {
       case class Bar(foo: Foo)
       implicit val barFormat: OFormat[Bar] = oformat()
       implicit val arbitraryBar: Arbitrary[Bar] =
@@ -146,8 +146,8 @@ class DerivedOFormatSuite extends FeatureSpec with Checkers {
     }
   }
 
-  feature("error messages must be helpful") {
-    scenario("error messages must be helpful") {
+  Feature("error messages must be helpful") {
+    Scenario("error messages must be helpful") {
       sealed trait Foo
       case class Bar(x: Int) extends Foo
       case class Baz(s: String) extends Foo
@@ -161,8 +161,8 @@ class DerivedOFormatSuite extends FeatureSpec with Checkers {
     }
   }
 
-  feature("user-defined type tags") {
-    scenario("user-defined type tags") {
+  Feature("user-defined type tags") {
+    Scenario("user-defined type tags") {
       sealed trait Foo
       case class Bar(x: Int) extends Foo
       case class Baz(s: String) extends Foo
diff --git a/library/src/test/scala/julienrf/json/derived/NameAdapterSuite.scala b/library/src/test/scala/julienrf/json/derived/NameAdapterSuite.scala
index 038690c..a8b9172 100644
--- a/library/src/test/scala/julienrf/json/derived/NameAdapterSuite.scala
+++ b/library/src/test/scala/julienrf/json/derived/NameAdapterSuite.scala
@@ -2,15 +2,15 @@ package julienrf.json.derived
 
 import org.scalacheck.Arbitrary.arbitrary
 import org.scalacheck.{Arbitrary, Gen}
-import org.scalatest.FeatureSpec
-import org.scalatest.prop.Checkers
+import org.scalatest.featurespec.AnyFeatureSpec
+import org.scalatestplus.scalacheck.Checkers
 import play.api.libs.json._
 
-class NameAdapterSuite extends FeatureSpec with Checkers {
+class NameAdapterSuite extends AnyFeatureSpec with Checkers {
 
-  feature("use camelCase as the default casing for field names") {
+  Feature("use camelCase as the default casing for field names") {
 
-    scenario("product type") {
+    Scenario("product type") {
       case class Foo(sC: String, iC: Int)
       implicit val fooArbitrary: Arbitrary[(Foo, JsValue)] =
         Arbitrary(for (s <- Gen.alphaStr; i <- arbitrary[Int]) yield (Foo(s, i), Json.obj("sC" -> s, "iC" -> i)))
@@ -20,9 +20,9 @@ class NameAdapterSuite extends FeatureSpec with Checkers {
 
   }
 
-  feature("customize the casing for field names") {
+  Feature("customize the casing for field names") {
 
-    scenario("product type") {
+    Scenario("product type") {
       case class Foo(sC: String, iC: Int)
       implicit val fooArbitrary: Arbitrary[(Foo, JsValue)] =
         Arbitrary(for (s <- Gen.alphaStr; i <- arbitrary[Int]) yield (Foo(s, i), Json.obj("s_c" -> s, "i_c" -> i)))
@@ -30,7 +30,7 @@ class NameAdapterSuite extends FeatureSpec with Checkers {
       jsonIdentityLaw[Foo]
     }
 
-    scenario("sum types") {
+    Scenario("sum types") {
       sealed trait Foo
       case class Bar(xC: Int) extends Foo
       case class Baz(sC: String) extends Foo
@@ -50,7 +50,7 @@ class NameAdapterSuite extends FeatureSpec with Checkers {
       jsonIdentityLaw[Foo]
     }
 
-    scenario("sum types with options") {
+    Scenario("sum types with options") {
       sealed trait Foo
       case class Bar(xC: Int) extends Foo
       case class Baz(sC: String) extends Foo
@@ -73,7 +73,7 @@ class NameAdapterSuite extends FeatureSpec with Checkers {
 
 
 
-    scenario("recursive type") {
+    Scenario("recursive type") {
       sealed trait Tree
       case class Leaf(lS: String) extends Tree
       case class Node(lhsSnake: Tree, rhsSnake: Tree) extends Tree
diff --git a/project/build.properties b/project/build.properties
index d3f83a3..797e7cc 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.17
\ No newline at end of file
+sbt.version=1.3.10
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 2adcbdc..afd0f45 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -4,4 +4,4 @@ addSbtPlugin("com.typesafe.sbt" % "sbt-git" % "0.9.3")
 
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "0.5.0")
 
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.29")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.3.0")