diff --git a/EmptyStateKit/Classes/AssociationPolicy/AssociationPolicy.swift b/EmptyStateKit/Classes/AssociationPolicy/AssociationPolicy.swift
index 8334f00..d53223d 100644
--- a/EmptyStateKit/Classes/AssociationPolicy/AssociationPolicy.swift
+++ b/EmptyStateKit/Classes/AssociationPolicy/AssociationPolicy.swift
@@ -20,7 +20,7 @@ enum AssociationPolicy: UInt {
     }
 }
 
-protocol AssociatedObjects: class { }
+protocol AssociatedObjects: AnyObject { }
 
 // transparent wrappers
 extension AssociatedObjects {
diff --git a/EmptyStateKit/Classes/EmptyState.swift b/EmptyStateKit/Classes/EmptyState.swift
index afadb71..8653065 100644
--- a/EmptyStateKit/Classes/EmptyState.swift
+++ b/EmptyStateKit/Classes/EmptyState.swift
@@ -8,11 +8,11 @@
 
 import UIKit
 
-public protocol EmptyStateDelegate: class {
+public protocol EmptyStateDelegate: AnyObject {
     func emptyState(emptyState: EmptyState, didPressButton button: UIButton)
 }
 
-public protocol EmptyStateDataSource: class {
+public protocol EmptyStateDataSource: AnyObject {
     func imageForState(_ state: CustomState, inEmptyState emptyState: EmptyState) -> UIImage?
     func titleForState(_ state: CustomState, inEmptyState emptyState: EmptyState) -> String?
     func descriptionForState(_ state: CustomState, inEmptyState emptyState: EmptyState) -> String?
diff --git a/EmptyStateKit/Classes/NibView.swift b/EmptyStateKit/Classes/NibView.swift
index f16986c..14af5b8 100644
--- a/EmptyStateKit/Classes/NibView.swift
+++ b/EmptyStateKit/Classes/NibView.swift
@@ -8,7 +8,7 @@
 
 import UIKit
 
-protocol NibViewProtocol: class {
+protocol NibViewProtocol: AnyObject {
     func commonInit()
 }
 
diff --git a/EmptyStateKit/Classes/Protocols/NibLoadable.swift b/EmptyStateKit/Classes/Protocols/NibLoadable.swift
index 9eab60c..2c93c1f 100644
--- a/EmptyStateKit/Classes/Protocols/NibLoadable.swift
+++ b/EmptyStateKit/Classes/Protocols/NibLoadable.swift
@@ -16,7 +16,7 @@ import UIKit
  *
  * to be able to instantiate them from the NIB in a type-safe manner
  */
-protocol NibLoadable: class {
+protocol NibLoadable: AnyObject {
     /// The nib file to use to load a new instance of the View designed in a XIB
     static var nib: UINib { get }
 }