diff --git a/src/main/scala/com/github/fluency03/blockchain/api/actors/BlockPoolActor.scala b/src/main/scala/com/github/fluency03/blockchain/api/actors/BlockPoolActor.scala
index 143a5aa..0a132eb 100644
--- a/src/main/scala/com/github/fluency03/blockchain/api/actors/BlockPoolActor.scala
+++ b/src/main/scala/com/github/fluency03/blockchain/api/actors/BlockPoolActor.scala
@@ -26,6 +26,8 @@ class BlockPoolActor extends ActorSupport {
   override def preStart(): Unit = log.info("{} started!", this.getClass.getSimpleName)
   override def postStop(): Unit = log.info("{} stopped!", this.getClass.getSimpleName)
 
+  import context.dispatcher
+
   val blockchainActor: ActorSelection = context.actorSelection(PARENT_UP + BLOCKCHAIN_ACTOR_NAME)
   val networkActor: ActorSelection = context.actorSelection(PARENT_UP + NETWORK_ACTOR_NAME)
   val txPoolActor: ActorSelection = context.actorSelection(PARENT_UP + TX_POOL_ACTOR_NAME)
@@ -44,12 +46,6 @@ class BlockPoolActor extends ActorSupport {
     case _ => unhandled _
   }
 
-  /**
-   * TODO (Chang): new APIS:
-   *  - CreateBlock
-   *
-   */
-
   /**
    * Handlers for each of the Messages.
    */
diff --git a/src/main/scala/com/github/fluency03/blockchain/api/routes/BlockPoolRoutes.scala b/src/main/scala/com/github/fluency03/blockchain/api/routes/BlockPoolRoutes.scala
index a055787..cfb3faf 100644
--- a/src/main/scala/com/github/fluency03/blockchain/api/routes/BlockPoolRoutes.scala
+++ b/src/main/scala/com/github/fluency03/blockchain/api/routes/BlockPoolRoutes.scala
@@ -19,12 +19,6 @@ trait BlockPoolRoutes extends RoutesSupport {
 
   def blockPoolActor: ActorRef
 
-  /**
-   * TODO (Chang): new APIS:
-   *  - CreateBlock
-   *
-   */
-
   lazy val blockPoolRoutes: Route =
     pathPrefix(BLOCK_POOL) {
       path(BLOCKS) {