diff --git a/launch/src/main/input_resources/sbt/sbt.boot.properties b/launch/src/main/input_resources/sbt/sbt.boot.properties
index 3bbd92970..9234be5f8 100644
--- a/launch/src/main/input_resources/sbt/sbt.boot.properties
+++ b/launch/src/main/input_resources/sbt/sbt.boot.properties
@@ -12,7 +12,6 @@
 
 [repositories]
   local
-  jcenter: https://jcenter.bintray.com/
   maven-central
   typesafe-ivy-releases: https://repo.typesafe.com/typesafe/ivy-releases/, [organization]/[module]/[revision]/[type]s/[artifact](-[classifier]).[ext], bootOnly
   sbt-ivy-snapshots: https://repo.scala-sbt.org/scalasbt/ivy-snapshots/, [organization]/[module]/[revision]/[type]s/[artifact](-[classifier]).[ext], bootOnly
diff --git a/main/src/main/scala/sbt/Defaults.scala b/main/src/main/scala/sbt/Defaults.scala
index 2860c67d8..c29c31ad7 100755
--- a/main/src/main/scala/sbt/Defaults.scala
+++ b/main/src/main/scala/sbt/Defaults.scala
@@ -1148,6 +1148,7 @@ object Classpaths {
     moduleConfigurations :== Nil,
     publishTo :== None,
     resolvers :== Nil,
+    useJCenter :== false,
     retrievePattern :== Resolver.defaultRetrievePattern,
     transitiveClassifiers :== Seq(SourceClassifier, DocClassifier),
     sourceArtifactTypes :== Artifact.DefaultSourceTypes,
@@ -1174,12 +1175,16 @@ object Classpaths {
     organizationHomepage <<= organizationHomepage or homepage,
     projectInfo <<= (name, description, homepage, startYear, licenses, organizationName, organizationHomepage, scmInfo, developers) apply ModuleInfo,
     overrideBuildResolvers <<= appConfiguration(isOverrideRepositories),
-    externalResolvers <<= (externalResolvers.task.?, resolvers, appResolvers) {
-      case (Some(delegated), Seq(), _) => delegated
-      case (_, rs, Some(ars))          => task { ars ++ rs } // TODO - Do we need to filter out duplicates?
-      case (_, rs, _)                  => task { Resolver.withDefaultResolvers(rs) }
+    externalResolvers <<= (externalResolvers.task.?, resolvers, appResolvers, useJCenter) {
+      case (Some(delegated), Seq(), _, _) => delegated
+      case (_, rs, Some(ars), uj)         => task { ars ++ rs }
+      case (_, rs, _, uj)                 => task { Resolver.withDefaultResolvers(rs, uj, true) }
+    },
+    appResolvers := {
+      val ac = appConfiguration.value
+      val uj = useJCenter.value
+      appRepositories(ac) map { ars => Resolver.reorganizeAppResolvers(ars, uj, true) }
     },
-    appResolvers <<= appConfiguration apply appRepositories,
     bootResolvers <<= appConfiguration map bootRepositories,
     fullResolvers <<= (projectResolver, externalResolvers, sbtPlugin, sbtResolver, bootResolvers, overrideBuildResolvers) map { (proj, rs, isPlugin, sbtr, boot, overrideFlag) =>
       boot match {
diff --git a/main/src/main/scala/sbt/Keys.scala b/main/src/main/scala/sbt/Keys.scala
index 5536feeca..86ef49416 100644
--- a/main/src/main/scala/sbt/Keys.scala
+++ b/main/src/main/scala/sbt/Keys.scala
@@ -345,6 +345,7 @@ object Keys {
   val projectResolver = TaskKey[Resolver]("project-resolver", "Resolver that handles inter-project dependencies.", DTask)
   val fullResolvers = TaskKey[Seq[Resolver]]("full-resolvers", "Combines the project resolver, default resolvers, and user-defined resolvers.", CTask)
   val otherResolvers = SettingKey[Seq[Resolver]]("other-resolvers", "Resolvers not included in the main resolver chain, such as those in module configurations.", CSetting)
+  val useJCenter = SettingKey[Boolean]("use-jcenter", "Use JCenter as the default repository.", BSetting)
   val moduleConfigurations = SettingKey[Seq[ModuleConfiguration]]("module-configurations", "Defines module configurations, which override resolvers on a per-module basis.", BMinusSetting)
   val retrievePattern = SettingKey[String]("retrieve-pattern", "Pattern used to retrieve managed dependencies to the current build.", DSetting)
   val retrieveConfiguration = SettingKey[Option[RetrieveConfiguration]]("retrieve-configuration", "Configures retrieving dependencies to the current build.", DSetting)
diff --git a/notes/0.13.10/make-JCenter-opt-in.markdown b/notes/0.13.10/make-JCenter-opt-in.markdown
new file mode 100644
index 000000000..6ca9bec03
--- /dev/null
+++ b/notes/0.13.10/make-JCenter-opt-in.markdown
@@ -0,0 +1,7 @@
+
+  [@eed3si9n]: https://github.com/eed3si9n
+  [2217]: https://github.com/sbt/sbt/issues/2217
+
+### Fixes with compatibility implications
+
+- sbt 0.13.10 adds a new setting `useJCenter`, which is set to `false` by default. When set to `true`, JCenter will be placed as the first external resolver to find library dependencies. [#2217][2217] by [@eed3si9n][@eed3si9n]
diff --git a/notes/0.13.9.markdown b/notes/0.13.9.markdown
index dab3fcd0f..e82387097 100644
--- a/notes/0.13.9.markdown
+++ b/notes/0.13.9.markdown
@@ -51,12 +51,14 @@
   [2046]: https://github.com/sbt/sbt/issues/2046
   [2097]: https://github.com/sbt/sbt/pull/2097
   [2129]: https://github.com/sbt/sbt/pull/2129
+  [1938]: https://github.com/sbt/sbt/pull/1938
 
 ### Fixes with compatibility implications
 
 - Starting 0.13.9, `crossScalaVersions` default value is fixed back to the older 0.12.x behavior. See below for details.
 - Starting 0.13.9, the generated POM files no longer include dependencies on source or javadoc jars obtained via `withSources()` or `withJavadoc()`. See below for details.
 - Scala version is bumped to 2.10.5. This brings in the fix for [SI-9027][SI9027]: XML node sequence literal bug. [#1666][1666]/[#2068][2068] by [@eed3si9n][@eed3si9n]
+- Change launcher configuration so [JCenter](https://bintray.com/bintray/jcenter) is looked at first before all other external repositories. [#1938][1938]
 
 ### Improvements
 
diff --git a/sbt/src/sbt-test/dependency-management/default-resolvers/build.sbt b/sbt/src/sbt-test/dependency-management/default-resolvers/build.sbt
new file mode 100644
index 000000000..dfb7fbb1c
--- /dev/null
+++ b/sbt/src/sbt-test/dependency-management/default-resolvers/build.sbt
@@ -0,0 +1,16 @@
+lazy val check = taskKey[Unit]("")
+lazy val check2 = taskKey[Unit]("")
+
+lazy val root = (project in file(".")).
+  settings(
+    check := {
+      val fr = fullResolvers.value
+      assert(!(fr exists { _.name == "jcenter" }))
+      assert(fr exists { _.name == "public" })
+    },
+    check2 := {
+      val fr = fullResolvers.value
+      assert(fr exists { _.name == "jcenter" })
+      assert(fr exists { _.name == "public" })
+    }
+  )
diff --git a/sbt/src/sbt-test/dependency-management/default-resolvers/test b/sbt/src/sbt-test/dependency-management/default-resolvers/test
new file mode 100644
index 000000000..0d310c9f5
--- /dev/null
+++ b/sbt/src/sbt-test/dependency-management/default-resolvers/test
@@ -0,0 +1,11 @@
+> check
+
+> set useJCenter := true
+
+> check2
+
+> reload
+
+> set resolvers += Resolver.jcenterRepo
+
+> check2
diff --git a/src/main/conscript/sbt/launchconfig b/src/main/conscript/sbt/launchconfig
index 81d7bfd1b..033dc550b 100644
--- a/src/main/conscript/sbt/launchconfig
+++ b/src/main/conscript/sbt/launchconfig
@@ -12,7 +12,6 @@
 
 [repositories]
   local
-  jcenter: https://jcenter.bintray.com/
   maven-central
   typesafe-ivy-releases: https://repo.typesafe.com/typesafe/ivy-releases/, [organization]/[module]/[revision]/[type]s/[artifact](-[classifier]).[ext], bootOnly
   sbt-ivy-snapshots: https://repo.scala-sbt.org/scalasbt/ivy-snapshots/, [organization]/[module]/[revision]/[type]s/[artifact](-[classifier]).[ext], bootOnly
diff --git a/src/main/conscript/scalas/launchconfig b/src/main/conscript/scalas/launchconfig
index ff63d0fa8..0d0d5664c 100644
--- a/src/main/conscript/scalas/launchconfig
+++ b/src/main/conscript/scalas/launchconfig
@@ -12,7 +12,6 @@
 
 [repositories]
   local
-  jcenter: https://jcenter.bintray.com/
   maven-central
   typesafe-ivy-releases: https://repo.typesafe.com/typesafe/ivy-releases/, [organization]/[module]/[revision]/[type]s/[artifact](-[classifier]).[ext], bootOnly
   sbt-ivy-snapshots: https://repo.scala-sbt.org/scalasbt/ivy-snapshots/, [organization]/[module]/[revision]/[type]s/[artifact](-[classifier]).[ext], bootOnly
diff --git a/src/main/conscript/screpl/launchconfig b/src/main/conscript/screpl/launchconfig
index ffdf06ee8..afa5eb125 100644
--- a/src/main/conscript/screpl/launchconfig
+++ b/src/main/conscript/screpl/launchconfig
@@ -12,7 +12,6 @@
 
 [repositories]
   local
-  jcenter: https://jcenter.bintray.com/
   maven-central
   typesafe-ivy-releases: https://repo.typesafe.com/typesafe/ivy-releases/, [organization]/[module]/[revision]/[type]s/[artifact](-[classifier]).[ext], bootOnly
   sbt-ivy-snapshots: https://repo.scala-sbt.org/scalasbt/ivy-snapshots/, [organization]/[module]/[revision]/[type]s/[artifact](-[classifier]).[ext], bootOnly