diff --git a/.travis.yml b/.travis.yml
index af260cfa..9b7ba5c5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,7 +7,7 @@ jdk:
 scala:
   - 2.11.12
   - 2.12.8
-  - 2.13.0-RC2
+  - 2.13.0-RC3
 
 env:
   global:
@@ -20,12 +20,12 @@ env:
   matrix:
     # The empty SCALAJS_VERSION will only compile for the JVM
     - SCALAJS_VERSION=
-    - SCALAJS_VERSION=0.6.27
-    - SCALAJS_VERSION=1.0.0-M7
+    - SCALAJS_VERSION=0.6.28
+    - SCALAJS_VERSION=1.0.0-M8
 
 matrix:
   include:
-    - env: SCALANATIVE_VERSION=0.3.8
+    - env: SCALANATIVE_VERSION=0.3.9
       jdk: oraclejdk8
 
 script: admin/build.sh
diff --git a/build.sbt b/build.sbt
index e4753b7b..6d566764 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,7 +1,7 @@
 import ScalaModulePlugin._
 import sbtcrossproject.crossProject
 
-crossScalaVersions in ThisBuild := List("2.12.8", "2.11.12", "2.13.0-RC2")
+crossScalaVersions in ThisBuild := List("2.12.8", "2.11.12", "2.13.0-RC3")
 
 lazy val root = project.in(file("."))
   .aggregate(`scala-parser-combinatorsJS`, `scala-parser-combinatorsJVM`, `scala-parser-combinatorsNative`)
@@ -14,7 +14,7 @@ lazy val `scala-parser-combinators` = crossProject(JSPlatform, JVMPlatform, Nati
   settings(
     name := "scala-parser-combinators",
     version := "1.1.2-SNAPSHOT",
-    mimaPreviousVersion := Some("1.1.0").filter(_ => System.getenv("SCALAJS_VERSION") != "1.0.0-M7"),
+    mimaPreviousVersion := Some("1.1.0").filter(_ => System.getenv("SCALAJS_VERSION") != "1.0.0-M8"),
 
     apiMappings += (scalaInstance.value.libraryJar ->
         url(s"https://www.scala-lang.org/api/${scalaVersion.value}/")),
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 525fb023..5c408086 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,12 +1,12 @@
 addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.0.0")
 
 val scalaJSVersion =
-  Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("0.6.27")
+  Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("0.6.28")
 
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % scalaJSVersion)
 
 val scalaNativeVersion =
-  Option(System.getenv("SCALANATIVE_VERSION")).filter(_.nonEmpty).getOrElse("0.3.8")
+  Option(System.getenv("SCALANATIVE_VERSION")).filter(_.nonEmpty).getOrElse("0.3.9")
 
 addSbtPlugin("org.scala-native" % "sbt-scala-native" % scalaNativeVersion)