diff --git a/DKChainableAnimationKit.xcodeproj/project.pbxproj b/DKChainableAnimationKit.xcodeproj/project.pbxproj
index fad47d3..585e027 100644
--- a/DKChainableAnimationKit.xcodeproj/project.pbxproj
+++ b/DKChainableAnimationKit.xcodeproj/project.pbxproj
@@ -203,11 +203,14 @@
 				TargetAttributes = {
 					5287D6731B1120E6006A9A84 = {
 						CreatedOnToolsVersion = 6.3.2;
+						DevelopmentTeam = 4V6HDFWSR4;
 						LastSwiftMigration = 0920;
+						ProvisioningStyle = Automatic;
 					};
 					5287D67E1B1120E6006A9A84 = {
 						CreatedOnToolsVersion = 6.3.2;
-						LastSwiftMigration = 0830;
+						DevelopmentTeam = U6G6XZT3DJ;
+						LastSwiftMigration = 1000;
 					};
 				};
 			};
@@ -381,8 +384,11 @@
 		5287D68B1B1120E6006A9A84 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				CODE_SIGN_IDENTITY = "iPhone Developer";
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
+				CODE_SIGN_STYLE = Automatic;
 				DEFINES_MODULE = YES;
+				DEVELOPMENT_TEAM = 4V6HDFWSR4;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
@@ -391,17 +397,21 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.draveness.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
 				SKIP_INSTALL = YES;
 				SWIFT_SWIFT3_OBJC_INFERENCE = On;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
 		5287D68C1B1120E6006A9A84 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				CODE_SIGN_IDENTITY = "iPhone Developer";
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
+				CODE_SIGN_STYLE = Automatic;
 				DEFINES_MODULE = YES;
+				DEVELOPMENT_TEAM = 4V6HDFWSR4;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
@@ -410,15 +420,17 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.draveness.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				PROVISIONING_PROFILE_SPECIFIER = "";
 				SKIP_INSTALL = YES;
 				SWIFT_SWIFT3_OBJC_INFERENCE = On;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
 		5287D68E1B1120E6006A9A84 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				DEVELOPMENT_TEAM = U6G6XZT3DJ;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(SDKROOT)/Developer/Library/Frameworks",
 					"$(inherited)",
@@ -431,13 +443,15 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.draveness.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = On;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
 		5287D68F1B1120E6006A9A84 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				DEVELOPMENT_TEAM = U6G6XZT3DJ;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(SDKROOT)/Developer/Library/Frameworks",
 					"$(inherited)",
@@ -446,7 +460,8 @@
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "com.draveness.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
-				SWIFT_VERSION = 3.0;
+				SWIFT_SWIFT3_OBJC_INFERENCE = On;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
diff --git a/DKChainableAnimationKit.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/DKChainableAnimationKit.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/DKChainableAnimationKit.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/DKChainableAnimationKit/Classes/DKChainableAnimationKit+Bezier.swift b/DKChainableAnimationKit/Classes/DKChainableAnimationKit+Bezier.swift
index d99ed4f..ef9fb07 100644
--- a/DKChainableAnimationKit/Classes/DKChainableAnimationKit+Bezier.swift
+++ b/DKChainableAnimationKit/Classes/DKChainableAnimationKit+Bezier.swift
@@ -28,7 +28,7 @@ public extension DKChainableAnimationKit {
         self.addAnimationCalculationAction { (view: UIView) -> Void in
             let pathAnimation = self.basicAnimationForKeyPath("position")
             pathAnimation.path = path.cgPath
-            pathAnimation.rotationMode = kCAAnimationRotateAuto
+            pathAnimation.rotationMode = CAAnimationRotationMode.rotateAuto
             self.addAnimationFromCalculationBlock(pathAnimation)
         }
 
@@ -43,7 +43,7 @@ public extension DKChainableAnimationKit {
         self.addAnimationCalculationAction { (view: UIView) -> Void in
             let pathAnimation = self.basicAnimationForKeyPath("position")
             pathAnimation.path = path.cgPath
-            pathAnimation.rotationMode = kCAAnimationRotateAutoReverse
+            pathAnimation.rotationMode = CAAnimationRotationMode.rotateAutoReverse
             self.addAnimationFromCalculationBlock(pathAnimation)
         }
 
diff --git a/DKChainableAnimationKit/Classes/DKKeyFrameAnimation.swift b/DKChainableAnimationKit/Classes/DKKeyFrameAnimation.swift
index 1a6babb..ac26b68 100644
--- a/DKChainableAnimationKit/Classes/DKKeyFrameAnimation.swift
+++ b/DKChainableAnimationKit/Classes/DKKeyFrameAnimation.swift
@@ -123,7 +123,7 @@ open class DKKeyFrameAnimation: CAKeyframeAnimation {
                         m41: m41, m42: m42, m43: m43, m44: m44) as [AnyObject]
                 }
             }
-            self.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionLinear)
+            self.timingFunction = CAMediaTimingFunction(name: CAMediaTimingFunctionName.linear)
         }
     }