diff --git a/main/src/main/scala/sbt/Defaults.scala b/main/src/main/scala/sbt/Defaults.scala
index b9ab939ef..3ae24adde 100755
--- a/main/src/main/scala/sbt/Defaults.scala
+++ b/main/src/main/scala/sbt/Defaults.scala
@@ -623,12 +623,15 @@ object Defaults extends BuildCommon {
       if (ScalaInstance.isDotty(scalaVersion.value))
         file(ScalaArtifacts.dottyID(binVersion))
       else file(ScalaArtifacts.CompilerID)
-    new ScalaInstance(scalaVersion.value,
-                      makeClassLoader(state.value)(allJars.toList),
-                      libraryJar,
-                      compilerJar,
-                      allJars.toArray,
-                      None)
+    new ScalaInstance(
+      scalaVersion.value,
+      makeClassLoader(state.value)(allJars.toList),
+      makeClassLoader(state.value)(List(libraryJar)),
+      libraryJar,
+      compilerJar,
+      allJars.toArray,
+      None
+    )
   }
   def scalaInstanceFromHome(dir: File): Initialize[Task[ScalaInstance]] = Def.task {
     ScalaInstance(dir)(makeClassLoader(state.value))
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index aa50fc3e1..94a583ea8 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -9,9 +9,9 @@ object Dependencies {
 
   // sbt modules
   private val ioVersion = "1.1.4"
-  private val utilVersion = "1.1.2"
-  private val lmVersion = "1.1.3"
-  private val zincVersion = "1.1.1"
+  private val utilVersion = "1.1.3"
+  private val lmVersion = "1.1.4"
+  private val zincVersion = "1.1.3"
 
   private val sbtIO = "org.scala-sbt" %% "io" % ioVersion
 
@@ -26,8 +26,8 @@ object Dependencies {
   private val libraryManagementCore = "org.scala-sbt" %% "librarymanagement-core" % lmVersion
   private val libraryManagementIvy = "org.scala-sbt" %% "librarymanagement-ivy" % lmVersion
 
-  val launcherInterface = "org.scala-sbt" % "launcher-interface" % "1.0.2"
-  val rawLauncher = "org.scala-sbt" % "launcher" % "1.0.2"
+  val launcherInterface = "org.scala-sbt" % "launcher-interface" % "1.0.3"
+  val rawLauncher = "org.scala-sbt" % "launcher" % "1.0.3"
   val testInterface = "org.scala-sbt" % "test-interface" % "1.0"
   val ipcSocket = "org.scala-sbt.ipcsocket" % "ipcsocket" % "1.0.0"