diff --git a/build.sbt b/build.sbt
index 41a967b3a..412d7b65f 100644
--- a/build.sbt
+++ b/build.sbt
@@ -32,9 +32,12 @@ def commonSettings: Seq[Setting[_]] = Seq(
 
 val mimaSettings = Def settings (
   mimaPreviousArtifacts := Set(
-    organization.value % moduleName.value % "1.0.0"
+    "1.0.0", "1.0.1", "1.0.2", "1.0.3",
+    "1.1.0", "1.1.1",
+  ) map (version =>
+    organization.value %% moduleName.value % version
       cross (if (crossPaths.value) CrossVersion.binary else CrossVersion.disabled)
-  )
+  ),
 )
 
 lazy val utilRoot: Project = (project in file("."))
@@ -62,9 +65,7 @@ lazy val utilRoot: Project = (project in file("."))
         homepage := Some(url("https://github.com/sbt/util")),
         description := "Util module for sbt",
         scmInfo := Some(ScmInfo(url("https://github.com/sbt/util"), "git@github.com:sbt/util.git")),
-        scalafmtOnCompile := true,
         scalafmtOnCompile in Sbt := false,
-        scalafmtVersion := "1.2.0",
       )),
     commonSettings,
     name := "Util Root",
diff --git a/internal/util-scripted/src/main/scala/sbt/internal/scripted/FileCommands.scala b/internal/util-scripted/src/main/scala/sbt/internal/scripted/FileCommands.scala
index 3b5daaef7..6aefa4a7a 100644
--- a/internal/util-scripted/src/main/scala/sbt/internal/scripted/FileCommands.scala
+++ b/internal/util-scripted/src/main/scala/sbt/internal/scripted/FileCommands.scala
@@ -9,6 +9,7 @@ import java.io.File
 import sbt.io.{ IO, Path }
 import sbt.io.syntax._
 import Path._
+import sbt.io.IO
 
 class FileCommands(baseDirectory: File) extends BasicStatementHandler {
   lazy val commands = commandMap
@@ -67,7 +68,8 @@ class FileCommands(baseDirectory: File) extends BasicStatementHandler {
   def newer(a: String, b: String): Unit = {
     val pathA = fromString(a)
     val pathB = fromString(b)
-    val isNewer = pathA.exists && (!pathB.exists || pathA.lastModified > pathB.lastModified)
+    val isNewer = pathA.exists &&
+      (!pathB.exists || IO.getModifiedTimeOrZero(pathA) > IO.getModifiedTimeOrZero(pathB))
     if (!isNewer) {
       scriptError(s"$pathA is not newer than $pathB")
     }
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 439ff5650..97e4f992b 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -7,7 +7,7 @@ object Dependencies {
   val scala211 = "2.11.12"
   val scala212 = "2.12.4"
 
-  private val ioVersion = "1.1.1"
+  private val ioVersion = "1.1.3"
 
   private val sbtIO = "org.scala-sbt" %% "io" % ioVersion
 
diff --git a/project/build.properties b/project/build.properties
index 94005e587..394cb75cf 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.0.0
+sbt.version=1.0.4
diff --git a/project/plugins.sbt b/project/plugins.sbt
index 81ebe9957..b85b1f525 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -1,4 +1,2 @@
-addSbtPlugin("org.scala-sbt" % "sbt-houserules" % "0.3.3")
-addSbtPlugin("org.scala-sbt" % "sbt-contraband" % "0.3.0")
-addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.1.17")
-addSbtPlugin("com.lucidchart" % "sbt-scalafmt" % "1.14")
+addSbtPlugin("org.scala-sbt" % "sbt-houserules" % "0.3.5")
+addSbtPlugin("org.scala-sbt" % "sbt-contraband" % "0.3.2")
diff --git a/util-cache/src/main/scala/sbt/util/FileInfo.scala b/util-cache/src/main/scala/sbt/util/FileInfo.scala
index 6fcb3d619..bef3d6bfd 100644
--- a/util-cache/src/main/scala/sbt/util/FileInfo.scala
+++ b/util-cache/src/main/scala/sbt/util/FileInfo.scala
@@ -4,8 +4,9 @@
 package sbt.util
 
 import java.io.File
+import java.io.FileNotFoundException
 import scala.util.control.NonFatal
-import sbt.io.Hash
+import sbt.io.{ Hash, IO }
 import sjsonnew.{ Builder, JsonFormat, Unbuilder, deserializationError }
 import CacheImplicits._
 
@@ -49,6 +50,7 @@ object FilesInfo {
 }
 
 object FileInfo {
+
   sealed trait Style {
     type F <: FileInfo
 
@@ -88,7 +90,7 @@ object FileInfo {
     }
 
     implicit def apply(file: File): HashModifiedFileInfo =
-      FileHashModified(file.getAbsoluteFile, Hash(file).toList, file.lastModified)
+      FileHashModified(file.getAbsoluteFile, Hash(file).toList, IO.getModifiedTimeOrZero(file))
   }
 
   object hash extends Style {
@@ -145,7 +147,7 @@ object FileInfo {
     }
 
     implicit def apply(file: File): ModifiedFileInfo =
-      FileModified(file.getAbsoluteFile, file.lastModified)
+      FileModified(file.getAbsoluteFile, IO.getModifiedTimeOrZero(file))
   }
 
   object exists extends Style {
diff --git a/util-cache/src/test/scala/FileInfoSpec.scala b/util-cache/src/test/scala/FileInfoSpec.scala
index debd427c7..7b0f3e035 100644
--- a/util-cache/src/test/scala/FileInfoSpec.scala
+++ b/util-cache/src/test/scala/FileInfoSpec.scala
@@ -3,10 +3,11 @@ package sbt.util
 import sjsonnew.shaded.scalajson.ast.unsafe._
 import sjsonnew._, support.scalajson.unsafe._
 import sbt.internal.util.UnitSpec
+import sbt.io.IO
 
 class FileInfoSpec extends UnitSpec {
   val file = new java.io.File(".").getAbsoluteFile
-  val fileInfo: ModifiedFileInfo = FileModified(file, file.lastModified())
+  val fileInfo: ModifiedFileInfo = FileModified(file, IO.getModifiedTimeOrZero(file))
   val filesInfo = FilesInfo(Set(fileInfo))
 
   it should "round trip" in assertRoundTrip(filesInfo)