diff --git a/.swift-version b/.swift-version
index 9f55b2c..bf77d54 100644
--- a/.swift-version
+++ b/.swift-version
@@ -1 +1 @@
-3.0
+4.2
diff --git a/Example/IGColorPicker.xcodeproj/project.pbxproj b/Example/IGColorPicker.xcodeproj/project.pbxproj
index ab5d420..cb7b1a3 100644
--- a/Example/IGColorPicker.xcodeproj/project.pbxproj
+++ b/Example/IGColorPicker.xcodeproj/project.pbxproj
@@ -48,7 +48,7 @@
 		9FAEF4144B69B4DE10AECF21 /* Pods-IGColorPicker_Example.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-IGColorPicker_Example.release.xcconfig"; path = "Pods/Target Support Files/Pods-IGColorPicker_Example/Pods-IGColorPicker_Example.release.xcconfig"; sourceTree = "<group>"; };
 		B249C39F1D8ABCE8C406EED6 /* Pods-IGColorPicker_Tests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-IGColorPicker_Tests.debug.xcconfig"; path = "Pods/Target Support Files/Pods-IGColorPicker_Tests/Pods-IGColorPicker_Tests.debug.xcconfig"; sourceTree = "<group>"; };
 		B5CB5F41429ED1420D267465 /* Pods-IGColorPicker_Tests.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-IGColorPicker_Tests.release.xcconfig"; path = "Pods/Target Support Files/Pods-IGColorPicker_Tests/Pods-IGColorPicker_Tests.release.xcconfig"; sourceTree = "<group>"; };
-		E6F4F3AABBDCF3FE8E4F59CF /* IGColorPicker.podspec */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text; name = IGColorPicker.podspec; path = ../IGColorPicker.podspec; sourceTree = "<group>"; };
+		E6F4F3AABBDCF3FE8E4F59CF /* IGColorPicker.podspec */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text; name = IGColorPicker.podspec; path = ../IGColorPicker.podspec; sourceTree = "<group>"; xcLanguageSpecificationIdentifier = xcode.lang.ruby; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -470,7 +470,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "org.cocoapods.demo.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Debug;
 		};
@@ -486,7 +486,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = "org.cocoapods.demo.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_SWIFT3_OBJC_INFERENCE = Default;
-				SWIFT_VERSION = 4.0;
+				SWIFT_VERSION = 4.2;
 			};
 			name = Release;
 		};
diff --git a/Example/IGColorPicker/AppDelegate.swift b/Example/IGColorPicker/AppDelegate.swift
index f491e72..56a7e11 100644
--- a/Example/IGColorPicker/AppDelegate.swift
+++ b/Example/IGColorPicker/AppDelegate.swift
@@ -14,7 +14,7 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     var window: UIWindow?
 
 
-    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
         // Override point for customization after application launch.
         return true
     }
diff --git a/Example/Podfile.lock b/Example/Podfile.lock
index 3baf6b8..8325c15 100644
--- a/Example/Podfile.lock
+++ b/Example/Podfile.lock
@@ -1,7 +1,7 @@
 PODS:
   - IGColorPicker (0.4.2):
-    - M13Checkbox (~> 3.2.0)
-  - M13Checkbox (3.2.2)
+    - M13Checkbox (~> 3.3.2)
+  - M13Checkbox (3.3.2)
 
 DEPENDENCIES:
   - IGColorPicker (from `../`)
@@ -15,8 +15,8 @@ EXTERNAL SOURCES:
     :path: "../"
 
 SPEC CHECKSUMS:
-  IGColorPicker: 518c7f1ccddd8b28bd6b1e552091240ef48039e5
-  M13Checkbox: a8c2491cfbbca10797925fd0b9154a782bf40d89
+  IGColorPicker: 5d578b4d3bb2d51c541ecf14dd9737b53c0c55f2
+  M13Checkbox: d75dca81d61c9903e7f091f32b35a3254bc97dce
 
 PODFILE CHECKSUM: 4ebb9ec0d26d8739b0c18dc9faaa5462d18e8245
 
diff --git a/IGColorPicker.podspec b/IGColorPicker.podspec
index 6b19d3d..8c23e8d 100644
--- a/IGColorPicker.podspec
+++ b/IGColorPicker.podspec
@@ -16,5 +16,5 @@ s.ios.deployment_target = '8.3'
 
 s.source_files = 'IGColorPicker/Classes/**/*'
 
-s.dependency 'M13Checkbox', '~> 3.2.0'
+s.dependency 'M13Checkbox', '~> 3.3.2'
 end