diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index d179c64d..59367176 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -9,8 +9,8 @@ object Dependencies {
   def nightlyVersion: Option[String] =
     sys.env.get("BUILD_VERSION") orElse sys.props.get("sbt.build.version")
 
-  private val ioVersion = nightlyVersion.getOrElse("1.6.0-M2")
-  private val utilVersion = nightlyVersion.getOrElse("1.6.0-RC1")
+  private val ioVersion = nightlyVersion.getOrElse("1.6.0")
+  private val utilVersion = nightlyVersion.getOrElse("1.6.0")
 
   private val sbtIO = "org.scala-sbt" %% "io" % ioVersion