diff --git a/akka-docs/rst/project/migration-guide-2.3.x-2.4.x.rst b/akka-docs/rst/project/migration-guide-2.3.x-2.4.x.rst
index 878c6f39bc..7f22d9a8e0 100644
--- a/akka-docs/rst/project/migration-guide-2.3.x-2.4.x.rst
+++ b/akka-docs/rst/project/migration-guide-2.3.x-2.4.x.rst
@@ -44,3 +44,6 @@ The following, previously deprecated, features have been removed:
 * JavaLoggingEventHandler, replaced by JavaLogger
 
 * UntypedActorFactory
+
+* Java API TestKit.dilated, moved to JavaTestKit.dilated
+
diff --git a/akka-testkit/src/main/scala/akka/testkit/TestKit.scala b/akka-testkit/src/main/scala/akka/testkit/TestKit.scala
index acb0966c9c..7e1c9a833b 100644
--- a/akka-testkit/src/main/scala/akka/testkit/TestKit.scala
+++ b/akka-testkit/src/main/scala/akka/testkit/TestKit.scala
@@ -748,14 +748,6 @@ object TestKit {
    */
   def now: Duration = System.nanoTime().nanos
 
-  /**
-   * Java API: Scale timeouts (durations) during tests with the configured
-   * 'akka.test.timefactor'.
-   */
-  @deprecated("Use JavaTestKit.dilated", "2.3")
-  def dilated(duration: Duration, system: ActorSystem): Duration =
-    duration * TestKitExtension(system).TestTimeFactor
-
   /**
    * Shut down an actor system and wait for termination.
    * On failure debug output will be logged about the remaining actors in the system.