diff --git a/.travis.yml b/.travis.yml
index 9b23b18b..a2492a96 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,7 @@ scala:
   - 2.11.12
   - 2.12.11
   - 2.13.3
-  - 3.0.0-M2
+  - 3.0.0-RC1
 
 env:
   - ADOPTOPENJDK=8
diff --git a/build.sbt b/build.sbt
index 2a2a3ac5..45929807 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,4 +1,4 @@
-lazy val scalaTestVersion = "3.2.3"
+lazy val scalaTestVersion = "3.2.4"
 
 lazy val commonSettings = Seq(
   scalacOptions     ++= Seq("-deprecation", "-feature"),
diff --git a/project/build.properties b/project/build.properties
index 7de0a938..0b2e09c5 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.4.4
+sbt.version=1.4.7
diff --git a/project/plugins.sbt b/project/plugins.sbt
index eaab28e3..f0ea7f00 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,2 +1,2 @@
-addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.2.3")
-addSbtPlugin("ch.epfl.lamp"           % "sbt-dotty"        % "0.4.6")  // cross-compile for dotty
+addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.2.4")
+addSbtPlugin("ch.epfl.lamp"           % "sbt-dotty"        % "0.5.3")  // cross-compile for dotty