diff --git a/Example/UnsplashKit.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/Example/UnsplashKit.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/Example/UnsplashKit.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/README.md b/README.md
index a2cfeab..49d345e 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@
 
 Unsplash API client written in Swift.
 
+This Fork updates the Official API section to swift 4.2
+
 [Unsplash](https://unsplash.com/) offers 2 APIs:
 - [Source API](https://source.unsplash.com/) (unlimited requests)
 - [Official API](https://unsplash.com/documentation)
diff --git a/UnsplashKit.podspec b/UnsplashKit.podspec
index 4bdac20..ad87ee6 100644
--- a/UnsplashKit.podspec
+++ b/UnsplashKit.podspec
@@ -10,6 +10,7 @@ Swift client for unsplash.com API
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
   s.author           = { 'Caramba.io' => 'hello@caramba.io' }
   s.source           = { :git => 'https://github.com/carambalabs/UnsplashKit.git', :tag => s.version.to_s }
+  s.swift_version = '4.2'
 
   s.default_subspec = 'Source'
 
diff --git a/UnsplashKit/Classes/Foundation/Resource.swift b/UnsplashKit/Classes/Foundation/Resource.swift
index b15ec45..bc04142 100644
--- a/UnsplashKit/Classes/Foundation/Resource.swift
+++ b/UnsplashKit/Classes/Foundation/Resource.swift
@@ -48,11 +48,11 @@ public struct Resource<A> {
     internal init(request: @escaping (URLComponents) -> URLRequest,
                   jsonParse: @escaping (Any, HTTPURLResponse) throws -> A) {
         self.request = request
-        self.parse = { input -> A in
-            guard let json = try JSONSerialization.jsonObject(with: input.0, options: []) as? [String: Any] else {
+        self.parse = { data,response  -> A in
+            guard let json = try JSONSerialization.jsonObject(with: data, options: []) as? [String: Any] else {
                 throw ResourceError.invalidData
             }
-            return try jsonParse(json, input.1)
+            return try jsonParse(json, response)
         }
     }
 
diff --git a/UnsplashKit/Classes/Foundation/WebLinking.swift b/UnsplashKit/Classes/Foundation/WebLinking.swift
index 1cb6bf8..02d835b 100644
--- a/UnsplashKit/Classes/Foundation/WebLinking.swift
+++ b/UnsplashKit/Classes/Foundation/WebLinking.swift
@@ -14,9 +14,8 @@ public struct Link: Equatable, Hashable {
     self.parameters = parameters ?? [:]
   }
 
-  /// Returns the hash value
-  public var hashValue: Int {
-    return uri.hashValue
+  public func hash(into hasher: inout Hasher) {
+    hasher.combine(uri)
   }
 
   /// Relation type of the Link.
@@ -170,9 +169,9 @@ func split(_ separator: String) -> (String) -> (String, String) {
     let range = input.range(of: separator, options: NSString.CompareOptions(rawValue: 0), range: nil, locale: nil)
 
     if let range = range {
-      let lhs = input.substring(to: range.lowerBound)
-      let rhs = input.substring(from: range.upperBound)
-      return (lhs, rhs)
+        let lhs = input[..<range.lowerBound]
+        let rhs = input[range.upperBound...]
+        return (String(lhs), String(rhs))
     }
 
     return (input, "")
@@ -193,7 +192,7 @@ func takeFirst(_ input: [String]) -> (String, ArraySlice<String>) {
 func trim(_ lhs: Character, _ rhs: Character) -> (String) -> String {
   return { input in
     if input.hasPrefix("\(lhs)") && input.hasSuffix("\(rhs)") {
-      return input[input.characters.index(after: input.startIndex)..<input.characters.index(before: input.endIndex)]
+      return String(input[input.index(after: input.startIndex)..<input.index(before: input.endIndex)])
     }
 
     return input
diff --git a/UnsplashKit/Classes/UnsplashAPI/Client.swift b/UnsplashKit/Classes/UnsplashAPI/Client.swift
index 7338039..1a2e3a3 100644
--- a/UnsplashKit/Classes/UnsplashAPI/Client.swift
+++ b/UnsplashKit/Classes/UnsplashAPI/Client.swift
@@ -39,8 +39,8 @@ public final class UnsplashClient {
 
     // MARK: - Constants
 
-    fileprivate struct Constants {
-        static var location: String = "https://api.unsplash.com/"
+    public struct Constants {
+        public static var location: String = "https://api.unsplash.com/"
     }
 
     // MARK: - Attributes
@@ -119,7 +119,7 @@ public final class UnsplashClient {
 
 public extension UnsplashClient {
 
-    convenience public init(location: URL = URL(string: UnsplashClient.Constants.location)!,
+    convenience init(location: URL = URL(string: UnsplashClient.Constants.location)!,
                             session: URLSession = URLSession.shared,
                             headersProvider: HeadersProvider) {
         self.init(location: location, session: session, headers: headersProvider.headers)
diff --git a/UnsplashKit/Classes/UnsplashAPI/Models/Collection.swift b/UnsplashKit/Classes/UnsplashAPI/Models/Collection.swift
index a172e8f..a5edcc5 100644
--- a/UnsplashKit/Classes/UnsplashAPI/Models/Collection.swift
+++ b/UnsplashKit/Classes/UnsplashAPI/Models/Collection.swift
@@ -69,7 +69,7 @@ public extension Collection {
     ///   - page: page to be fetched.
     ///   - perPage: number of items per page.
     /// - Returns: resource for fetching the collections.
-    public static func list(page: Int = 1,
+    static func list(page: Int = 1,
                             perPage: Int = 10) -> Resource<[Collection]> {
         var queryItems: [URLQueryItem] = []
         queryItems.append(URLQueryItem(name: "page", value: "\(page)"))
@@ -90,7 +90,7 @@ public extension Collection {
     ///   - page: page to be fetched.
     ///   - perPage: number of items to be fetched.
     /// - Returns: resource for fetching the featured collections.
-    public static func featured(page: Int = 1,
+    static func featured(page: Int = 1,
                                 perPage: Int = 10) -> Resource<[Collection]> {
         var queryItems: [URLQueryItem] = []
         queryItems.append(URLQueryItem(name: "page", value: "\(page)"))
@@ -111,7 +111,7 @@ public extension Collection {
     ///   - page: page to be fetched.
     ///   - perPage: number of items to be fetched.
     /// - Returns: resource for fetching curated collections.
-    public static func curated(page: Int = 1,
+    static func curated(page: Int = 1,
                                perPage: Int = 10) -> Resource<[Collection]> {
         var queryItems: [URLQueryItem] = []
         queryItems.append(URLQueryItem(name: "page", value: "\(page)"))
@@ -130,7 +130,7 @@ public extension Collection {
     ///
     /// - Parameter id: collection identifier.
     /// - Returns: resource for fetching the collection.
-    public static func get(id: String) -> Resource<Collection> {
+    static func get(id: String) -> Resource<Collection> {
         let queryItems: [URLQueryItem] = []
         return Resource { (components: URLComponents) -> URLRequest in
             var mutable: URLComponents = components
@@ -149,7 +149,7 @@ public extension Collection {
     ///   - page: page to be fetched.
     ///   - perPage: items per page.
     /// - Returns: resource for fetching the photos.
-    public static func photos(id: String,
+    static func photos(id: String,
                               page: Int = 1,
                               perPage: Int = 10) -> Resource<[Photo]> {
         var queryItems: [URLQueryItem] = []
@@ -172,7 +172,7 @@ public extension Collection {
     ///   - page: page to be fetched.
     ///   - perPage: number of items per page.
     /// - Returns: resource for fetching the photos.
-    public static func curatedPhotos(id: String,
+    static func curatedPhotos(id: String,
                                      page: Int = 1,
                                      perPage: Int = 10) -> Resource<[Photo]> {
         var queryItems: [URLQueryItem] = []
@@ -192,7 +192,7 @@ public extension Collection {
     ///
     /// - Parameter id: collection identifier whose related ones will be fetched.
     /// - Returns: resource for fetching the related collections.
-    public static func related(id: String) -> Resource<[Collection]> {
+    static func related(id: String) -> Resource<[Collection]> {
         let queryItems: [URLQueryItem] = []
         return Resource { (components: URLComponents) -> URLRequest in
             var mutable: URLComponents = components
@@ -211,7 +211,7 @@ public extension Collection {
     ///   - description: collection title.
     ///   - isPrivate: collection private value.
     /// - Returns: resource for creating the collection.
-    public static func create(title: String,
+    static func create(title: String,
                               description: String? = nil,
                               isPrivate: Bool? = nil) -> Resource<Collection> {
         var queryItems: [URLQueryItem] = []
@@ -240,7 +240,7 @@ public extension Collection {
     ///   - description: new description.
     ///   - isPrivate: new private value.
     /// - Returns: resource for updating theh collection.
-    public static func update(id: String,
+    static func update(id: String,
                               title: String? = nil,
                               description: String? = nil,
                               isPrivate: Bool? = nil) -> Resource<Collection> {
@@ -268,7 +268,7 @@ public extension Collection {
     ///
     /// - Parameter id: collection identifier.
     /// - Returns: resource for deleting the collection.
-    public static func delete(id: String) -> Resource<Void> {
+    static func delete(id: String) -> Resource<Void> {
         let queryItems: [URLQueryItem] = []
         return Resource(request: { (components) -> URLRequest in
             var mutable: URLComponents = components
@@ -288,7 +288,7 @@ public extension Collection {
     ///   - id: photo identifier.
     ///   - collection: collection identifier.
     /// - Returns: resource for adding the photo.
-    public static func addPhoto(with id: String,
+    static func addPhoto(with id: String,
                                 to collection: String) -> Resource<Void> {
         var queryItems: [URLQueryItem] = []
         queryItems.append(URLQueryItem(name: "photo_id", value: "\(id)"))
@@ -310,7 +310,7 @@ public extension Collection {
     ///   - id: photo identifier.
     ///   - collection: collection identifier.
     /// - Returns: resource for deleting the photo.
-    public static func deletePhoto(with id: String,
+    static func deletePhoto(with id: String,
                                    from collection: String) -> Resource<Void> {
         var queryItems: [URLQueryItem] = []
         queryItems.append(URLQueryItem(name: "photo_id", value: "\(id)"))
diff --git a/UnsplashKit/Classes/UnsplashAPI/Models/Photo.swift b/UnsplashKit/Classes/UnsplashAPI/Models/Photo.swift
index 7d05bc9..92b8a94 100644
--- a/UnsplashKit/Classes/UnsplashAPI/Models/Photo.swift
+++ b/UnsplashKit/Classes/UnsplashAPI/Models/Photo.swift
@@ -72,7 +72,7 @@ public extension Photo {
     ///   - perPage: number of items per page.
     ///   - orderBy: order by value.
     /// - Returns: resource for fetching photos.
-    public static func list(page: Int = 1,
+    static func list(page: Int = 1,
                             perPage: Int = 10,
                             orderBy: Order = .latest) -> Resource<[Photo]> {
         var queryItems: [URLQueryItem] = []
@@ -96,7 +96,7 @@ public extension Photo {
     ///   - perPage: number of items per page.
     ///   - orderBy: order by value.
     /// - Returns: resource for fetching the curated photos.
-    public static func curated(page: Int = 1,
+    static func curated(page: Int = 1,
                                perPage: Int = 10,
                                orderBy: Order = .latest) -> Resource<[Photo]> {
         var queryItems: [URLQueryItem] = []
@@ -120,7 +120,7 @@ public extension Photo {
     ///   - size: photo size.
     ///   - rect: photo rect.
     /// - Returns: resource for fetching a photo.
-    public static func get(id: String,
+    static func get(id: String,
                            size: CGSize? = nil,
                            rect: CGRect? = nil) -> Resource<Photo> {
         var queryItems: [URLQueryItem] = []
@@ -152,7 +152,7 @@ public extension Photo {
     ///   - size: size of the photos.
     ///   - orientation: orientation filtering.
     /// - Returns: resource for fetching the photos.
-    public static func random(categories: [String] = [],
+    static func random(categories: [String] = [],
                               collections: [String] = [],
                               featured: Bool? = nil,
                               username: String? = nil,
@@ -195,7 +195,7 @@ public extension Photo {
     ///   - size: size of the photos.
     ///   - orientation: orientation used for filtering.
     /// - Returns: resource for fetching the photos.
-    public static func random(count: Int,
+    static func random(count: Int,
                               categories: [String] = [],
                               collections: [String] = [],
                               featured: Bool? = nil,
@@ -233,7 +233,7 @@ public extension Photo {
     ///
     /// - Parameter id: photo identifier.
     /// - Returns: resource for fetching the stats.
-    public static func stats(id: String) -> Resource<PhotoStats> {
+    static func stats(id: String) -> Resource<PhotoStats> {
         return Resource { (components: URLComponents) -> URLRequest in
             var mutable: URLComponents = components
             mutable.path = "/photos/\(id)/stats"
@@ -247,7 +247,7 @@ public extension Photo {
     ///
     /// - Parameter id: photo identifier.
     /// - Returns: resource for fetching the photo download link.
-    public static func downloadLink(id: String) -> Resource<String> {
+    static func downloadLink(id: String) -> Resource<String> {
         return Resource(request: { (components) -> URLRequest in
             var mutable: URLComponents = components
             mutable.path = "/photos/\(id)/download"
@@ -275,7 +275,7 @@ public extension Photo {
     ///   - exifFocalLength: photo new exif focal length.
     ///   - exifIsoSpeedRatings: photo new exif iso speed ratings.
     /// - Returns: resource for updating the photo.
-    public static func update(id: String,
+    static func update(id: String,
                               locationPosition: CLLocation? = nil,
                               locationName: String? = nil,
                               locationCity: String? = nil,
@@ -336,7 +336,7 @@ public extension Photo {
     ///
     /// - Parameter id: photo to be liked.
     /// - Returns: resource for liking the photo.
-    public static func like(id: String) -> Resource<Void> {
+    static func like(id: String) -> Resource<Void> {
         return Resource(request: { (components) -> URLRequest in
             var mutable: URLComponents = components
             mutable.path = "/photos/\(id)/like"
@@ -352,7 +352,7 @@ public extension Photo {
     ///
     /// - Parameter id: photo to be unliked.
     /// - Returns: resource for unliking the photo.
-    public static func unlike(id: String) -> Resource<Void> {
+    static func unlike(id: String) -> Resource<Void> {
         return Resource(request: { (components) -> URLRequest in
             var mutable: URLComponents = components
             mutable.path = "/photos/\(id)/like"
diff --git a/UnsplashKit/Classes/UnsplashAPI/Models/User.swift b/UnsplashKit/Classes/UnsplashAPI/Models/User.swift
index 90614cd..06ac463 100644
--- a/UnsplashKit/Classes/UnsplashAPI/Models/User.swift
+++ b/UnsplashKit/Classes/UnsplashAPI/Models/User.swift
@@ -88,7 +88,7 @@ public struct User: Unboxable {
 public extension User {
     
     /// Returns the resource to fetch the authenticated user.
-    public static var me: Resource<User> = Resource { (components: URLComponents) -> URLRequest in
+    static var me: Resource<User> = Resource { (components: URLComponents) -> URLRequest in
         var mutable: URLComponents = components
         mutable.path = "/me"
         return URLRequest(url: mutable.url!)
@@ -106,7 +106,7 @@ public extension User {
     ///   - bio: user new biography.
     ///   - instagramUsername: user new instagram username.
     /// - Returns: resource for updating the user.
-    public static func updateMe(username: String? = nil,
+    static func updateMe(username: String? = nil,
                                 firstName: String? = nil,
                                 lastName: String? = nil,
                                 email: String? = nil,
@@ -139,7 +139,7 @@ public extension User {
     ///   - username: user username.
     ///   - size: profile photo size.
     /// - Returns: resource for fetching an user.
-    public static func get(username: String,
+    static func get(username: String,
                            size: CGSize? = nil) -> Resource<User> {
         var queryItems: [URLQueryItem] = []
         if let size = size {
@@ -160,7 +160,7 @@ public extension User {
     ///
     /// - Parameter username: user username.
     /// - Returns: resource for fetching the portfolio url.
-    public static func portfolio(username: String) -> Resource<String> {
+    static func portfolio(username: String) -> Resource<String> {
         return Resource(request: { (components) -> URLRequest in
             var mutable: URLComponents = components
             mutable.path = "/users/\(username)/portfolio"
@@ -180,7 +180,7 @@ public extension User {
     ///   - perPage: number of items per page.
     ///   - orderBy: order by value.
     /// - Returns: resource for fetching the user's photos.
-    public static func photos(username: String,
+    static func photos(username: String,
                               page: Int = 1,
                               perPage: Int = 10,
                               orderBy: Order = .latest) -> Resource<[Photo]> {
@@ -206,7 +206,7 @@ public extension User {
     ///   - perPage: number of items per page.
     ///   - orderBy: order by value.
     /// - Returns: resource for fetching the liked photos.
-    public static func likes(username: String,
+    static func likes(username: String,
                              page: Int = 1,
                              perPage: Int = 10,
                              orderBy: Order = .latest) -> Resource<[Photo]> {
@@ -232,7 +232,7 @@ public extension User {
     ///   - perPage: number of items per page.
     ///   - orderBy: order by value.
     /// - Returns: resource for fetching the collections.
-    public static func collections(username: String,
+    static func collections(username: String,
                                    page: Int = 1,
                                    perPage: Int = 10,
                                    orderBy: Order = .latest) -> Resource<[Collection]> {