diff --git a/project/build.properties b/project/build.properties
index 1e9c43bb..5620cc50 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version = 1.1.5
+sbt.version=1.2.1
diff --git a/project/plugins.sbt b/project/plugins.sbt
index f28d11cc..8753a4de 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,4 +1,4 @@
 addSbtPlugin("io.get-coursier" %% "sbt-coursier" % "1.0.2")
-addSbtPlugin("com.geirsson" %% "sbt-scalafmt" % "1.6.0-RC3")
+addSbtPlugin("com.geirsson" %% "sbt-scalafmt" % "1.6.0-RC4")
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.5.10")
 addSbtPlugin("ch.epfl.scala" % "sbt-release-early" % "2.1.1")