diff --git a/akka-http-circe/src/main/scala/de/heikoseeberger/akkahttpcirce/CirceSupport.scala b/akka-http-circe/src/main/scala/de/heikoseeberger/akkahttpcirce/CirceSupport.scala
index 2bb84062..5e96de7b 100644
--- a/akka-http-circe/src/main/scala/de/heikoseeberger/akkahttpcirce/CirceSupport.scala
+++ b/akka-http-circe/src/main/scala/de/heikoseeberger/akkahttpcirce/CirceSupport.scala
@@ -54,9 +54,7 @@ object ErrorAccumulatingCirceSupport extends ErrorAccumulatingCirceSupport
   *
   * To use automatic codec derivation import `io.circe.generic.auto._`.
   */
-trait ErrorAccumulatingCirceSupport
-    extends BaseCirceSupport
-    with ErrorAccumulatingUnmarshaller
+trait ErrorAccumulatingCirceSupport extends BaseCirceSupport with ErrorAccumulatingUnmarshaller
 
 @deprecated(message = "Use either FailFastCirceSupport or ErrorAccumulatingCirceSupport",
             since = "1.13.0")
@@ -79,7 +77,9 @@ trait BaseCirceSupport {
     *
     * @return marshaller for JSON value
     */
-  implicit final def jsonMarshaller(implicit printer: Printer = Printer.noSpaces): ToEntityMarshaller[Json] =
+  implicit final def jsonMarshaller(
+      implicit printer: Printer = Printer.noSpaces
+  ): ToEntityMarshaller[Json] =
     Marshaller.withFixedContentType(`application/json`) { json =>
       HttpEntity(`application/json`, printer.pretty(json))
     }
@@ -90,7 +90,9 @@ trait BaseCirceSupport {
     * @tparam A type to encode
     * @return marshaller for any `A` value
     */
-  implicit final def marshaller[A: Encoder](implicit printer: Printer = Printer.noSpaces): ToEntityMarshaller[A] =
+  implicit final def marshaller[A: Encoder](
+      implicit printer: Printer = Printer.noSpaces
+  ): ToEntityMarshaller[A] =
     jsonMarshaller(printer).compose(implicitly[Encoder[A]].apply)
 
   /**
diff --git a/akka-http-circe/src/test/scala/de/heikoseeberger/akkahttpcirce/CirceSupportSpec.scala b/akka-http-circe/src/test/scala/de/heikoseeberger/akkahttpcirce/CirceSupportSpec.scala
index 3f1af671..ca268007 100644
--- a/akka-http-circe/src/test/scala/de/heikoseeberger/akkahttpcirce/CirceSupportSpec.scala
+++ b/akka-http-circe/src/test/scala/de/heikoseeberger/akkahttpcirce/CirceSupportSpec.scala
@@ -95,12 +95,12 @@ final class CirceSupportSpec extends AsyncWordSpec with Matchers with BeforeAndA
       val optionFoo = OptionFoo(None)
       Marshal(optionFoo)
         .to[RequestEntity]
-      .map(_.asInstanceOf[HttpEntity.Strict].data.decodeString("UTF-8") shouldBe "{\"a\":null}")
+        .map(_.asInstanceOf[HttpEntity.Strict].data.decodeString("UTF-8") shouldBe "{\"a\":null}")
     }
 
     "not write None" in {
       implicit val printer = Printer.noSpaces.copy(dropNullKeys = true)
-      val optionFoo = OptionFoo(None)
+      val optionFoo        = OptionFoo(None)
       Marshal(optionFoo)
         .to[RequestEntity]
         .map(_.asInstanceOf[HttpEntity.Strict].data.decodeString("UTF-8") shouldBe "{}")
diff --git a/build.sbt b/build.sbt
index 36c6cd5c..7821facb 100644
--- a/build.sbt
+++ b/build.sbt
@@ -107,9 +107,9 @@ lazy val library =
     object Version {
       final val akka         = "2.4.17"
       final val akkaHttp     = "10.0.5"
-      final val argonaut     = "6.2-RC2"
+      final val argonaut     = "6.2"
       final val circe        = "0.7.1"
-      final val jacksonScala = "2.8.7"
+      final val jacksonScala = "2.8.8"
       final val json4s       = "3.5.1"
       final val play         = "2.6.0-M6"
       final val scala        = "2.12.1"
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 0e191ce8..689018ef 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,6 +1,8 @@
-addSbtPlugin("com.dwijnand"      % "sbt-travisci" % "1.0.0")
-addSbtPlugin("com.geirsson"      % "sbt-scalafmt" % "0.6.5")
+addSbtPlugin("com.dwijnand"      % "sbt-travisci" % "1.1.0")
+addSbtPlugin("com.geirsson"      % "sbt-scalafmt" % "0.6.6")
 addSbtPlugin("com.jsuereth"      % "sbt-pgp"      % "1.0.0")
-addSbtPlugin("com.typesafe.sbt"  % "sbt-git"      % "0.8.5")
+addSbtPlugin("com.typesafe.sbt"  % "sbt-git"      % "0.9.2")
 addSbtPlugin("de.heikoseeberger" % "sbt-header"   % "1.8.0")
 addSbtPlugin("me.lessis"         % "bintray-sbt"  % "0.3.0")
+
+libraryDependencies += "org.slf4j" % "slf4j-nop" % "1.7.25" // Needed by sbt-git