diff --git a/build.sbt b/build.sbt
index 7b1335d1b..7bcace179 100644
--- a/build.sbt
+++ b/build.sbt
@@ -67,13 +67,30 @@ def testedBaseSettings: Seq[Setting[_]] =
   baseSettings ++ testDependencies
 
 lazy val sbtRoot: Project = (project in file("."))
-  .enablePlugins(ScriptedPlugin)
+  .enablePlugins(ScriptedPlugin, SiteScaladocPlugin)
   .configs(Sxr.sxrConf)
   .aggregate(nonRoots: _*)
   .settings(
     buildLevelSettings,
     minimalSettings,
-    rootSettings,
+    Util.baseScalacOptions,
+    Docs.settings,
+    Sxr.settings,
+    scalacOptions += "-Ymacro-expand:none", // for both sxr and doc
+    sources in sxr := {
+      val allSources = (sources ?? Nil).all(docProjects).value
+      allSources.flatten.distinct
+    }, //sxr
+    sources in (Compile, doc) := (sources in sxr).value, // doc
+    Sxr.sourceDirectories := {
+      val allSourceDirectories = (sourceDirectories ?? Nil).all(docProjects).value
+      allSourceDirectories.flatten
+    },
+    fullClasspath in sxr := (externalDependencyClasspath in Compile in sbtProj).value,
+    dependencyClasspath in (Compile, doc) := (fullClasspath in sxr).value,
+    Util.publishPomSettings,
+    otherRootSettings,
+    Transform.conscriptSettings(bundledLauncherProj),
     publish := {},
     publishLocal := {}
   )
@@ -329,10 +346,6 @@ def allProjects =
 
 lazy val nonRoots = allProjects.map(p => LocalProject(p.id))
 
-def rootSettings =
-  fullDocSettings ++
-    Util.publishPomSettings ++ otherRootSettings ++
-    Transform.conscriptSettings(bundledLauncherProj)
 def otherRootSettings =
   Seq(
     scripted := scriptedTask.evaluated,
@@ -380,21 +393,6 @@ lazy val docProjects: ScopeFilter = ScopeFilter(
   inAnyProject -- inProjects(sbtRoot, sbtProj, scriptedSbtProj, scriptedPluginProj),
   inConfigurations(Compile)
 )
-def fullDocSettings = Util.baseScalacOptions ++ Docs.settings ++ Sxr.settings ++ Seq(
-  scalacOptions += "-Ymacro-expand:none", // for both sxr and doc
-  sources in sxr := {
-    val allSources = (sources ?? Nil).all(docProjects).value
-    allSources.flatten.distinct
-  }, //sxr
-  sources in (Compile, doc) := (sources in sxr).value, // doc
-  Sxr.sourceDirectories := {
-    val allSourceDirectories = (sourceDirectories ?? Nil).all(docProjects).value
-    allSourceDirectories.flatten
-  },
-  fullClasspath in sxr := (externalDependencyClasspath in Compile in sbtProj).value,
-  dependencyClasspath in (Compile, doc) := (fullClasspath in sxr).value
-)
-
 lazy val safeUnitTests = taskKey[Unit]("Known working tests (for both 2.10 and 2.11)")
 lazy val safeProjects: ScopeFilter = ScopeFilter(
   inProjects(mainSettingsProj, mainProj, actionsProj, runProj, stdTaskProj),
diff --git a/project/Docs.scala b/project/Docs.scala
index 0721eb920..2db6636fd 100644
--- a/project/Docs.scala
+++ b/project/Docs.scala
@@ -1,24 +1,23 @@
 import sbt._
 import Keys._
 import StatusPlugin.autoImport._
-import com.typesafe.sbt.{ SbtGhPages, SbtGit, SbtSite, site => sbtsite }
-import SbtSite.{ site, SiteKeys }
+import com.typesafe.sbt.site.SitePlugin.autoImport._
+import com.typesafe.sbt.site.SiteScaladocPlugin.autoImport._
+import com.typesafe.sbt.{ SbtGhPages, SbtGit }
 import SbtGhPages.{ ghpages, GhPagesKeys => ghkeys }
 import SbtGit.{ git, GitKeys }
-import sbtsite.SphinxSupport
-import SiteKeys.{ makeSite, siteMappings }
-import Sxr.sxr
+import Sxr.{ sxr, sxrConf }
 import SiteMap.Entry
 
 object Docs {
   val siteExcludes = Set(".buildinfo", "objects.inv")
   def siteInclude(f: File) = !siteExcludes.contains(f.getName)
 
-  def settings: Seq[Setting[_]] =
-    site.settings ++
-      site.includeScaladoc("api") ++
-      siteIncludeSxr("sxr") ++
-      ghPagesSettings
+  def settings: Seq[Setting[_]] = Def settings (
+    siteSubdirName in SiteScaladoc := "api",
+    siteIncludeSxr("sxr"),
+    ghPagesSettings
+  )
 
   def ghPagesSettings = ghpages.settings ++ Seq(
     git.remoteRepo := "git@github.com:sbt/sbt.github.com.git",
@@ -34,10 +33,11 @@ object Docs {
     Path.userHome / ".sbt" / "ghpages" / status / organization.value / name.value
   }
 
-  def siteIncludeSxr(prefix: String) =
-    Seq(
-      mappings in sxr := Path.allSubpaths(sxr.value).toSeq
-    ) ++ site.addMappingsToSiteDir(mappings in sxr, prefix)
+  def siteIncludeSxr(prefix: String) = Def settings (
+    mappings in sxr := Path.allSubpaths(sxr.value).toSeq,
+    siteSubdirName in sxrConf := prefix,
+    addMappingsToSiteDir(mappings in sxr, siteSubdirName in sxrConf)
+  )
 
   def synchLocalImpl = Def task {
     val repo = ghkeys.updatedRepository.value
diff --git a/project/plugins.sbt b/project/plugins.sbt
index fcc71cf05..be879644a 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -7,6 +7,6 @@ addSbtPlugin("com.typesafe.sbt" % "sbt-ghpages" % "0.5.4")
 addSbtPlugin("com.typesafe.sbt" % "sbt-git" % "0.9.2")
 addSbtPlugin("com.typesafe.sbt" % "sbt-javaversioncheck" % "0.1.0")
 addSbtPlugin("com.geirsson" % "sbt-scalafmt" % "0.6.8")
-addSbtPlugin("com.typesafe.sbt" % "sbt-site" % "0.8.2")
+addSbtPlugin("com.typesafe.sbt" % "sbt-site" % "1.2.0")
 addSbtPlugin("me.lessis" % "bintray-sbt" % "0.3.0")
 addSbtPlugin("org.scala-sbt" % "sbt-contraband" % "0.3.0-M4")