diff --git a/PagingMenuController.xcodeproj/project.pbxproj b/PagingMenuController.xcodeproj/project.pbxproj
index 24d3a90e..5eafccf5 100644
--- a/PagingMenuController.xcodeproj/project.pbxproj
+++ b/PagingMenuController.xcodeproj/project.pbxproj
@@ -228,7 +228,7 @@
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -269,7 +269,7 @@
 				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 				VERSIONING_SYSTEM = "apple-generic";
@@ -292,7 +292,7 @@
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Debug;
 		};
@@ -310,7 +310,7 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SKIP_INSTALL = YES;
-				SWIFT_VERSION = 3.0;
+				SWIFT_VERSION = 4.0;
 			};
 			name = Release;
 		};
diff --git a/Pod/Classes/MenuItemView.swift b/Pod/Classes/MenuItemView.swift
index 44e92278..89e6ac3d 100644
--- a/Pod/Classes/MenuItemView.swift
+++ b/Pod/Classes/MenuItemView.swift
@@ -303,7 +303,7 @@ extension MenuItemView {
     
     fileprivate func estimatedLabelSize(_ label: UILabel) -> CGSize {
         guard let text = label.text else { return .zero }
-        return NSString(string: text).boundingRect(with: CGSize(width: CGFloat.greatestFiniteMagnitude, height: CGFloat.greatestFiniteMagnitude), options: .usesLineFragmentOrigin, attributes: [NSFontAttributeName: label.font], context: nil).size
+        return NSString(string: text).boundingRect(with: CGSize(width: CGFloat.greatestFiniteMagnitude, height: CGFloat.greatestFiniteMagnitude), options: .usesLineFragmentOrigin, attributes: [NSAttributedStringKey.font: label.font], context: nil).size
     }
     
     fileprivate func calculateLabelSize(_ label: UILabel, maxWidth: CGFloat) -> CGSize {
diff --git a/Pod/Classes/PagingMenuController.swift b/Pod/Classes/PagingMenuController.swift
index e8344a5f..cbe9b51d 100644
--- a/Pod/Classes/PagingMenuController.swift
+++ b/Pod/Classes/PagingMenuController.swift
@@ -478,7 +478,7 @@ extension PagingMenuController {
         menuView?.addGestureRecognizer(rightSwipeGestureRecognizer)
     }
     
-    internal func handleTapGesture(_ recognizer: UITapGestureRecognizer) {
+    @objc internal func handleTapGesture(_ recognizer: UITapGestureRecognizer) {
         guard let menuItemView = recognizer.view as? MenuItemView,
             let menuView = menuView,
             let page = menuView.menuItemViews.index(of: menuItemView),
@@ -503,7 +503,7 @@ extension PagingMenuController {
         move(toPage: newPage)
     }
     
-    internal func handleSwipeGesture(_ recognizer: UISwipeGestureRecognizer) {
+    @objc internal func handleSwipeGesture(_ recognizer: UISwipeGestureRecognizer) {
         guard let menuView = recognizer.view as? MenuView,
             let menuOptions = menuOptions else { return }