diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 86c6099ea..b7e235be8 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -11,7 +11,7 @@ object Dependencies {
   def nightlyVersion: Option[String] = sys.props.get("sbt.build.version")
 
   // sbt modules
-  private val ioVersion = nightlyVersion.getOrElse("1.3.1")
+  private val ioVersion = nightlyVersion.getOrElse("1.4.0-M2")
   private val lmVersion =
     sys.props.get("sbt.build.lm.version") match {
       case Some(version) => version