diff --git a/build.sbt b/build.sbt
index 0e3d33f7..a8d6ccef 100644
--- a/build.sbt
+++ b/build.sbt
@@ -2,7 +2,7 @@ scalaVersion in ThisBuild := crossScalaVersions.value.head
 
 crossScalaVersions in ThisBuild := {
   val v211 = List("2.11.8")
-  val v212 = List("2.12.0-RC1")
+  val v212 = List("2.12.1")
 
   val javaVersion = System.getProperty("java.version")
   val isTravisPublishing = !util.Properties.envOrElse("TRAVIS_TAG", "").trim.isEmpty
@@ -31,7 +31,8 @@ lazy val `scala-parser-combinators` = crossProject.in(file(".")).
     name := "scala-parser-combinators"
   ).
   jsSettings(
-    name := "scala-parser-combinators-js"
+    name := "scala-parser-combinators-js",
+    scalaJSUseRhino := true
   ).
   settings(
     moduleName         := "scala-parser-combinators",
diff --git a/project/build.properties b/project/build.properties
index 35c88bab..27e88aa1 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.12
+sbt.version=0.13.13
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 983683a9..84624327 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,3 +1,3 @@
 addSbtPlugin("org.scala-lang.modules" % "scala-module-plugin" % "1.0.4")
 
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.12")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.13")