diff --git a/InfiniteCollectionView.xcodeproj/project.pbxproj b/InfiniteCollectionView.xcodeproj/project.pbxproj
index 51d0cda..4819e8a 100644
--- a/InfiniteCollectionView.xcodeproj/project.pbxproj
+++ b/InfiniteCollectionView.xcodeproj/project.pbxproj
@@ -89,12 +89,18 @@
 			isa = PBXProject;
 			attributes = {
 				LastUpgradeCheck = 9999;
+				TargetAttributes = {
+					OBJ_17 = {
+						LastSwiftMigration = 1020;
+					};
+				};
 			};
 			buildConfigurationList = OBJ_2 /* Build configuration list for PBXProject "InfiniteCollectionView" */;
 			compatibilityVersion = "Xcode 3.2";
 			developmentRegion = English;
 			hasScannedForEncodings = 0;
 			knownRegions = (
+				English,
 				en,
 			);
 			mainGroup = OBJ_5;
@@ -135,6 +141,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = InfiniteCollectionView;
 				PRODUCT_MODULE_NAME = "$(TARGET_NAME:c99extidentifier)";
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
+				SWIFT_VERSION = 5.0;
 				TARGET_NAME = InfiniteCollectionView;
 			};
 			name = Debug;
@@ -155,6 +162,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = InfiniteCollectionView;
 				PRODUCT_MODULE_NAME = "$(TARGET_NAME:c99extidentifier)";
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
+				SWIFT_VERSION = 5.0;
 				TARGET_NAME = InfiniteCollectionView;
 			};
 			name = Release;
diff --git a/InfiniteCollectionView.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/InfiniteCollectionView.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/InfiniteCollectionView.xcodeproj/project.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/Sources/InfiniteCollectionView.swift b/Sources/InfiniteCollectionView.swift
index 5111dde..8ff2bcc 100644
--- a/Sources/InfiniteCollectionView.swift
+++ b/Sources/InfiniteCollectionView.swift
@@ -44,12 +44,12 @@ open class InfiniteCollectionView: UICollectionView {
         configure()
     }
     deinit {
-        NotificationCenter.default.removeObserver(self, name: .UIDeviceOrientationDidChange, object: nil)
+        NotificationCenter.default.removeObserver(self, name: UIDevice.orientationDidChangeNotification, object: nil)
     }
-    open func rotate(_ notification: Notification) {
+    @objc open func rotate(_ notification: Notification) {
         setContentOffset(CGPoint(x: CGFloat(pageIndex + indexOffset) * itemWidth, y: contentOffset.y), animated: false)
     }
-    open override func selectItem(at indexPath: IndexPath?, animated: Bool, scrollPosition: UICollectionViewScrollPosition) {
+    open override func selectItem(at indexPath: IndexPath?, animated: Bool, scrollPosition: UICollectionView.ScrollPosition) {
         guard let indexPath = indexPath else { return }
         // Correct the input IndexPath
         let correctedIndexPath = IndexPath(row: correctedIndex(indexPath.item + indexOffset), section: 0)
@@ -84,7 +84,7 @@ private extension InfiniteCollectionView {
         delegate = self
         dataSource = self
         register(UICollectionViewCell.self, forCellWithReuseIdentifier: defaultIdentifier)
-        NotificationCenter.default.addObserver(self, selector: #selector(InfiniteCollectionView.rotate(_:)), name: .UIDeviceOrientationDidChange, object: nil)
+        NotificationCenter.default.addObserver(self, selector: #selector(InfiniteCollectionView.rotate(_:)), name: UIDevice.orientationDidChangeNotification, object: nil)
     }
     func centerIfNeeded(_ scrollView: UIScrollView) {
         let currentOffset = contentOffset