diff --git a/Demo/DemoListViewController.swift b/Demo/DemoListViewController.swift
index 7492821..93bae8b 100644
--- a/Demo/DemoListViewController.swift
+++ b/Demo/DemoListViewController.swift
@@ -117,7 +117,7 @@ class DemoListViewController: UITableViewController, NohanaImagePickerController
     func showDisableToPickAssetsPicker() {
         let picker = NohanaImagePickerController()
         picker.delegate = self
-        picker.canPickAsset = { (asset:AssetType) -> Bool in
+        picker.canPickAsset = { (asset:Asset) -> Bool in
             return asset.identifier % 2 == 0
         }
         present(picker, animated: true, completion: nil)
diff --git a/NohanaImagePicker.podspec b/NohanaImagePicker.podspec
index 9fe7a44..c08ce5c 100644
--- a/NohanaImagePicker.podspec
+++ b/NohanaImagePicker.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'NohanaImagePicker'
-  s.version          = '0.7.0'
+  s.version          = '0.7.1'
   s.summary          = 'A multiple image picker for iOS app.'
   s.homepage         = 'https://github.com/nohana/NohanaImagePicker'
   s.license          = { :type => 'Apache License v2', :file => 'LICENSE' }
diff --git a/NohanaImagePicker/AssetCell.swift b/NohanaImagePicker/AssetCell.swift
index d4fa91b..0215bdf 100644
--- a/NohanaImagePicker/AssetCell.swift
+++ b/NohanaImagePicker/AssetCell.swift
@@ -22,7 +22,7 @@ class AssetCell: UICollectionViewCell {
     @IBOutlet weak var overlayView: UIView!
     
     weak var nohanaImagePickerController: NohanaImagePickerController?
-    var asset: AssetType?
+    var asset: Asset?
     
     override func willMove(toSuperview newSuperview: UIView?) {
         super.willMove(toSuperview: newSuperview)
@@ -52,7 +52,7 @@ class AssetCell: UICollectionViewCell {
         self.overlayView.isHidden = !pickButton.isSelected
     }
     
-    func update(asset: AssetType, nohanaImagePickerController: NohanaImagePickerController) {
+    func update(asset: Asset, nohanaImagePickerController: NohanaImagePickerController) {
         self.asset = asset
         self.nohanaImagePickerController = nohanaImagePickerController
         self.pickButton.isSelected = nohanaImagePickerController.pickedAssetList.isPicked(asset) 
diff --git a/NohanaImagePicker/ItemListType.swift b/NohanaImagePicker/ItemListType.swift
index 633cf72..9be8a04 100644
--- a/NohanaImagePicker/ItemListType.swift
+++ b/NohanaImagePicker/ItemListType.swift
@@ -14,20 +14,20 @@
  * limitations under the License.
  */
 
-public protocol ItemListType: Collection {
+public protocol ItemList: Collection {
     associatedtype Item
     var title:String { get }
     func update(_ handler:(() -> Void)?)
     subscript (index: Int) -> Item { get }
 }
 
-extension ItemListType {
+extension ItemList {
     public func index(after i: Int) -> Int {
         return i + 1
     }
 }
 
-public protocol AssetType {
+public protocol Asset {
     var identifier:Int { get }
     func image(targetSize:CGSize, handler: @escaping (ImageData?) -> Void)
 }
diff --git a/NohanaImagePicker/NohanaImagePickerController.swift b/NohanaImagePicker/NohanaImagePickerController.swift
index 26e7184..e679070 100644
--- a/NohanaImagePicker/NohanaImagePickerController.swift
+++ b/NohanaImagePicker/NohanaImagePickerController.swift
@@ -46,7 +46,7 @@ open class NohanaImagePickerController: UIViewController {
     open var shouldShowMoment: Bool = true
     open var shouldShowEmptyAlbum: Bool = false
     open var toolbarHidden: Bool = false
-    open var canPickAsset = { (asset:AssetType) -> Bool in
+    open var canPickAsset = { (asset:Asset) -> Bool in
         return true
     }
     lazy var assetBundle:Bundle = {
@@ -127,11 +127,11 @@ open class NohanaImagePickerController: UIViewController {
         albumListViewController.nohanaImagePickerController = self
     }
     
-    open func pickAsset(_ asset: AssetType) {
+    open func pickAsset(_ asset: Asset) {
         _ = pickedAssetList.pick(asset: asset)
     }
     
-    open func dropAsset(_ asset: AssetType) {
+    open func dropAsset(_ asset: Asset) {
         _ = pickedAssetList.drop(asset: asset)
     }
 }
diff --git a/NohanaImagePicker/PhotoKitAlbumList.swift b/NohanaImagePicker/PhotoKitAlbumList.swift
index 73efeda..27d1011 100644
--- a/NohanaImagePicker/PhotoKitAlbumList.swift
+++ b/NohanaImagePicker/PhotoKitAlbumList.swift
@@ -15,7 +15,7 @@
  */
 import Photos
 
-public class PhotoKitAlbumList: ItemListType {
+public class PhotoKitAlbumList: ItemList {
     
     private var albumList:[Item] = []
     private let assetCollectionTypes: [PHAssetCollectionType]
@@ -37,7 +37,7 @@ public class PhotoKitAlbumList: ItemListType {
         }
     }
     
-    // MARK: - ItemListType
+    // MARK: - ItemList
     
     public typealias Item = PhotoKitAssetList
     
diff --git a/NohanaImagePicker/PhotoKitAsset.swift b/NohanaImagePicker/PhotoKitAsset.swift
index 768442b..4e7fc0c 100644
--- a/NohanaImagePicker/PhotoKitAsset.swift
+++ b/NohanaImagePicker/PhotoKitAsset.swift
@@ -15,7 +15,7 @@
  */
 import Photos
 
-public class PhotoKitAsset :AssetType {
+public class PhotoKitAsset :Asset {
     
     let asset: PHAsset
     
@@ -27,7 +27,7 @@ public class PhotoKitAsset :AssetType {
         return asset as PHAsset
     }
     
-    // MARK: - AssetType
+    // MARK: - Asset
     
     public var identifier:Int {
         return asset.localIdentifier.hash
diff --git a/NohanaImagePicker/PhotoKitAssetList.swift b/NohanaImagePicker/PhotoKitAssetList.swift
index 15a5aad..338a432 100644
--- a/NohanaImagePicker/PhotoKitAssetList.swift
+++ b/NohanaImagePicker/PhotoKitAssetList.swift
@@ -16,7 +16,7 @@
 
 import Photos
 
-open class PhotoKitAssetList :ItemListType {
+open class PhotoKitAssetList :ItemList {
     
     fileprivate let mediaType: MediaType
     open let assetList: PHAssetCollection
@@ -28,7 +28,7 @@ open class PhotoKitAssetList :ItemListType {
         update()
     }
     
-    // MARK: - ItemListType
+    // MARK: - ItemList
     
     public typealias Item = PhotoKitAsset
     
diff --git a/NohanaImagePicker/PickedAssetList.swift b/NohanaImagePicker/PickedAssetList.swift
index 5d6b6be..1d70178 100644
--- a/NohanaImagePicker/PickedAssetList.swift
+++ b/NohanaImagePicker/PickedAssetList.swift
@@ -16,14 +16,14 @@
 
 import Foundation
 
-class PickedAssetList: ItemListType {
+class PickedAssetList: ItemList {
     
-    var assetlist: Array<AssetType> = []
+    var assetlist: Array<Asset> = []
     weak var nohanaImagePickerController: NohanaImagePickerController?
     
-    // MARK: - ItemListType
+    // MARK: - ItemList
     
-    typealias Item = AssetType
+    typealias Item = Asset
     
     var title: String {
         return "Selected Assets"
@@ -49,7 +49,7 @@ class PickedAssetList: ItemListType {
     
     // MARK: - Manage assetlist
     
-    func pick(asset: AssetType) -> Bool {
+    func pick(asset: Asset) -> Bool {
         guard !isPicked(asset) else {
             return false
         }
@@ -83,7 +83,7 @@ class PickedAssetList: ItemListType {
         
     }
     
-    func drop(asset: AssetType) -> Bool {
+    func drop(asset: Asset) -> Bool {
         let assetsCountBeforeDropping = self.count
         if asset is PhotoKitAsset {
             if let canDrop = nohanaImagePickerController!.delegate?.nohanaImagePicker?(nohanaImagePickerController!, willDropPhotoKitAsset: (asset as! PhotoKitAsset).originalAsset, pickedAssetsCount: assetsCountBeforeDropping) , !canDrop {
@@ -109,7 +109,7 @@ class PickedAssetList: ItemListType {
         return true
     }
     
-    func isPicked(_ asset: AssetType) -> Bool {
+    func isPicked(_ asset: Asset) -> Bool {
         return assetlist.contains{ $0.identifier == asset.identifier }
     }
     
diff --git a/README.md b/README.md
index 4fa245e..3c28fba 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ picker.shouldShowMoment = shouldShowEmptyAlbum = true
 picker.shouldShowEmptyAlbum = true
 
 // Disable to pick asset
-picker.canPickAsset = { (asset:AssetType) -> Bool in
+picker.canPickAsset = { (asset:Asset) -> Bool in
     return false
 }
 
@@ -76,7 +76,7 @@ ColorConfig.backgroundColor = UIColor.redColor()
 Use [Carthage](https://github.com/Carthage/Carthage).
 
 - Add `github "nohana/NohanaImagePicker"` to your Cartfile.
-  - If you want to use Swift2.3, add `github "nohana/NohanaImagePicker", "0.6.0"` instead.
+  - If you want to use Swift2.3, add `github "nohana/NohanaImagePicker", "0.6.1"` instead.
   - If you want to use Swift2.2, add `github "nohana/NohanaImagePicker", "0.5.0"` instead.
 - Run `carthage update`.
 
@@ -91,7 +91,7 @@ Use [CocoaPods](https://cocoapods.org/).
   pod "NohanaImagePicker"
   ```
 
-  - If you want to use Swift2.3 write `pod "NohanaImagePicker",  "0.6.0"` instead of `pod "NohanaImagePicker"`.
+  - If you want to use Swift2.3 write `pod "NohanaImagePicker",  "0.6.1"` instead of `pod "NohanaImagePicker"`.
 
 - Run `pod install`.