diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 1bca36c6f..428f3786a 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -6,8 +6,8 @@ object Dependencies {
   val scala211 = "2.11.11"
   val scala212 = "2.12.3"
 
-  private val ioVersion = "1.0.0-M13"
-  private val utilVersion = "1.0.0-M27"
+  private val ioVersion = "1.0.0-RC3"
+  private val utilVersion = "1.0.0-RC3"
 
   private val sbtIO = "org.scala-sbt" %% "io" % ioVersion
 
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 12fc4e3b1..fa1b88965 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,5 +1,5 @@
 addSbtPlugin("org.scala-sbt" % "sbt-houserules" % "0.3.3")
-addSbtPlugin("org.scala-sbt" % "sbt-contraband" % "0.3.0-M9")
+addSbtPlugin("org.scala-sbt" % "sbt-contraband" % "0.3.0")
 
 // addSbtPlugin("com.lucidchart" % "sbt-scalafmt" % "1.3")
 addSbtPlugin("com.typesafe"  % "sbt-mima-plugin" % "0.1.15")