diff --git a/core/src/main/scala-2.12.0-M4 b/core/src/main/scala-2.12.0-M4
new file mode 120000
index 0000000000..9dc04540eb
--- /dev/null
+++ b/core/src/main/scala-2.12.0-M4
@@ -0,0 +1 @@
+scala-2.11
\ No newline at end of file
diff --git a/core/src/main/scala/scala/pickling/binary/Util.scala b/core/src/main/scala/scala/pickling/binary/UnsafeMemory.scala
similarity index 64%
rename from core/src/main/scala/scala/pickling/binary/Util.scala
rename to core/src/main/scala/scala/pickling/binary/UnsafeMemory.scala
index b3970ae2a5..5c45a1d2c2 100644
--- a/core/src/main/scala/scala/pickling/binary/Util.scala
+++ b/core/src/main/scala/scala/pickling/binary/UnsafeMemory.scala
@@ -1,9 +1,17 @@
 package scala.pickling.binary
 
+import sun.misc.Unsafe
+
 object UnsafeMemory {
-  import sun.misc.Unsafe
-  private[pickling] val unsafe: Unsafe =
-  scala.concurrent.util.Unsafe.instance
+  private[pickling] val unsafe: Unsafe = {
+    val fields = classOf[Unsafe].getDeclaredFields()
+    val unsafes = for (field <- fields; if field.getType == classOf[Unsafe]) yield {
+      field.setAccessible(true)
+      field.get(null).asInstanceOf[Unsafe]
+    }
+    unsafes.headOption.getOrElse(
+      throw new IllegalStateException("Can't find instance of sun.misc.Unsafe"))
+  }
   private[pickling] val byteArrayOffset: Long = unsafe.arrayBaseOffset(classOf[Array[Byte]])
   private[pickling] val shortArrayOffset: Long = unsafe.arrayBaseOffset(classOf[Array[Short]])
   private[pickling] val intArrayOffset: Long = unsafe.arrayBaseOffset(classOf[Array[Int]])
@@ -13,9 +21,9 @@ object UnsafeMemory {
   private[pickling] val charArrayOffset: Long = unsafe.arrayBaseOffset(classOf[Array[Char]])
   private[pickling] val booleanArrayOffset: Long = unsafe.arrayBaseOffset(classOf[Array[Boolean]])
   def putInt(arr: Array[Byte], i: Int, value: Int): Unit = {
-      unsafe.putInt(arr, byteArrayOffset + i, value)
+    unsafe.putInt(arr, byteArrayOffset + i, value)
   }
   def getInt(arr: Array[Byte], i: Int): Int = {
-      unsafe.getInt(arr, byteArrayOffset + i)
+    unsafe.getInt(arr, byteArrayOffset + i)
   }
 }
diff --git a/core/src/main/scala/scala/pickling/generator/sourcegen.scala b/core/src/main/scala/scala/pickling/generator/sourcegen.scala
index 1b15ed7eeb..3e19dcc813 100644
--- a/core/src/main/scala/scala/pickling/generator/sourcegen.scala
+++ b/core/src/main/scala/scala/pickling/generator/sourcegen.scala
@@ -356,7 +356,7 @@ private[pickling] trait SourceGenerator extends Macro with tags.FastTypeTagMacro
 
   def genAllocateInstance(x: AllocateInstance): c.Tree = {
     val tpe = x.tpe.tpe[c.universe.type](c.universe)
-    q"""_root_.scala.concurrent.util.Unsafe.instance.allocateInstance(classOf[$tpe]).asInstanceOf[$tpe]"""
+    q"""_root_.scala.pickling.binary.UnsafeMemory.unsafe.allocateInstance(classOf[$tpe]).asInstanceOf[$tpe]"""
   }
 
   def generateUnpickleImplFromAst(unpicklerAst: UnpicklerAst): c.Tree = {
@@ -484,7 +484,7 @@ private[pickling] trait SourceGenerator extends Macro with tags.FastTypeTagMacro
     val objectOutTpe = typeOf[scala.pickling.util.GenObjectOutput]
     val fieldName = "$ext"
     q"""
-       val $target = _root_.scala.concurrent.util.Unsafe.instance.allocateInstance(classOf[$tpe]).asInstanceOf[$tpe]
+       val $target = _root_.scala.pickling.binary.UnsafeMemory.unsafe.allocateInstance(classOf[$tpe]).asInstanceOf[$tpe]
        val $readerName = reader.readField($fieldName)
        val out = {
          val up = _root_.scala.Predef.implicitly[_root_.scala.pickling.Unpickler[$objectOutTpe]]
diff --git a/core/src/main/scala/scala/pickling/runtime/Runtime.scala b/core/src/main/scala/scala/pickling/runtime/Runtime.scala
index 52ae742b44..e8ac976a5c 100644
--- a/core/src/main/scala/scala/pickling/runtime/Runtime.scala
+++ b/core/src/main/scala/scala/pickling/runtime/Runtime.scala
@@ -3,6 +3,7 @@ package runtime
 
 import scala.pickling.PicklingErrors.BasePicklingException
 import scala.pickling.internal._
+import binary.UnsafeMemory
 
 import scala.reflect.runtime.universe.Mirror
 import ir._
@@ -233,7 +234,7 @@ class InterpretedUnpicklerRuntime(val mirror: Mirror, typeTag: String)(implicit
 
           // TODO: need to support modules and other special guys here
           // TODO: in principle, we could invoke a constructor here
-          val inst = scala.concurrent.util.Unsafe.instance.allocateInstance(clazz)
+          val inst = UnsafeMemory.unsafe.allocateInstance(clazz)
           if (shouldBotherAboutSharing(tpe)) registerUnpicklee(inst, preregisterUnpicklee())
           val im = mirror.reflect(inst)
 
@@ -332,7 +333,7 @@ class ShareNothingInterpretedUnpicklerRuntime(val mirror: Mirror, typeTag: Strin
 
           // TODO: need to support modules and other special guys here
           // TODO: in principle, we could invoke a constructor here
-          val inst = scala.concurrent.util.Unsafe.instance.allocateInstance(clazz)
+          val inst = UnsafeMemory.unsafe.allocateInstance(clazz)
           val im = mirror.reflect(inst)
 
           //debug(s"pendingFields: ${pendingFields.size}")
diff --git a/project/Dependencies.scala b/project/Dependencies.scala
index 8cff1c64c0..3d814e0483 100644
--- a/project/Dependencies.scala
+++ b/project/Dependencies.scala
@@ -2,7 +2,7 @@ import sbt._
 import Keys._
 
 object Dependencies {
-  lazy val scalaTest = "org.scalatest" %% "scalatest" % "3.0.0-M15"
+  lazy val scalaTest = "org.scalatest" %% "scalatest" % "3.0.0-RC2"
   lazy val scalaCheck = "org.scalacheck" %% "scalacheck" % "1.11.6"
   lazy val parserCombinators = "org.scala-lang.modules" %% "scala-parser-combinators" % "1.0.2"
   lazy val macroParadise = "org.scalamacros" % "paradise" % "2.0.1" cross CrossVersion.full
diff --git a/project/Util.scala b/project/Util.scala
index 94ecf0ad54..4e0c2411c6 100644
--- a/project/Util.scala
+++ b/project/Util.scala
@@ -3,7 +3,7 @@ import Keys._
 
 object Util {
   val buildScalaVersion = System.getProperty("scala.version", "2.11.7")
-  val buildScalaVersions = Seq("2.11.7", "2.10.4")
+  val buildScalaVersions = Seq("2.11.7", "2.10.4", "2.12.0-M4")
   val javaVersion       = System.getProperty("java.version")
 
   def loadCredentials(): List[Credentials] = {