diff --git a/build.sbt b/build.sbt
index 61cdd133..a4f93bcf 100644
--- a/build.sbt
+++ b/build.sbt
@@ -5,9 +5,9 @@ crossScalaVersions in ThisBuild := {
   val isJDK6Or7 =
     javaVersion.startsWith("1.6.") || javaVersion.startsWith("1.7.")
   if (isJDK6Or7)
-    Seq("2.11.7")
+    Seq("2.11.8")
   else
-    Seq("2.11.7", "2.12.0-M3")
+    Seq("2.11.8", "2.12.0-RC1")
 }
 
 lazy val `scala-parser-combinators` = crossProject.in(file(".")).
@@ -43,8 +43,8 @@ lazy val `scala-parser-combinators` = crossProject.in(file(".")).
   ).
   jsConfigure(_.enablePlugins(ScalaJSJUnitPlugin)).
   jvmSettings(
-    libraryDependencies += "junit" % "junit" % "4.11" % "test",
-    libraryDependencies += "com.novocode" % "junit-interface" % "0.10" % "test"
+    libraryDependencies += "junit" % "junit" % "4.12" % "test",
+    libraryDependencies += "com.novocode" % "junit-interface" % "0.11" % "test"
   ).
   jvmSettings(
     mimaPreviousVersion := Some("1.0.4")
diff --git a/project/build.properties b/project/build.properties
index 817bc38d..35c88bab 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.9
+sbt.version=0.13.12
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 8fef081e..983683a9 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" % "0.6.6")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.12")