diff --git a/.swiftlint.yml b/.swiftlint.yml
index 40faf67..deefb79 100644
--- a/.swiftlint.yml
+++ b/.swiftlint.yml
@@ -17,6 +17,7 @@ included: # paths to include during linting. `--path` is ignored if present.
 excluded: # paths to ignore during linting. Takes precedence over `included`.
   - Carthage
   - Pods
+  - GitTime/Sources/Utils/PropertyWrappers/BundleInfoWrapper.swift
 
 analyzer_rules: # Rules run by `swiftlint analyze` (experimental)
   - explicit_self
diff --git a/GitTime/Sources/Services/AuthService.swift b/GitTime/Sources/Services/AuthService.swift
index cf8bac5..4941155 100644
--- a/GitTime/Sources/Services/AuthService.swift
+++ b/GitTime/Sources/Services/AuthService.swift
@@ -62,7 +62,7 @@ final class AuthService: AuthServiceType {
                                                         }
             })
             if #available(iOS 13.0, *) {
-                if let loginVC = UIApplication.shared.keyWindow?.rootViewController as? LoginViewController {
+				if let loginVC = UIApplication.keyWindow?.rootViewController as? LoginViewController {
                     self.session?.presentationContextProvider = loginVC
                 }
             }
diff --git a/GitTime/Sources/Utils/Extensions/UIApplication+Extensions.swift b/GitTime/Sources/Utils/Extensions/UIApplication+Extensions.swift
new file mode 100644
index 0000000..5920507
--- /dev/null
+++ b/GitTime/Sources/Utils/Extensions/UIApplication+Extensions.swift
@@ -0,0 +1,22 @@
+//
+//  UIApplication+Extensions.swift
+//  GitTime
+//
+//  Created by Kanz on 2022/04/26.
+//
+
+import UIKit
+
+extension UIApplication {
+	static var keyWindow: UIWindow? {
+		if #available(iOS 15.0, *) {
+			return UIApplication.shared.connectedScenes
+				.filter { $0.activationState == .foregroundActive }
+				.first(where: { $0 is UIWindowScene })
+				.flatMap { $0 as? UIWindowScene }?.windows
+				.first(where: \.isKeyWindow)
+		} else {
+			return UIApplication.shared.windows.first(where: { $0.isKeyWindow })
+		}
+	}
+}
diff --git a/GitTime/Sources/Utils/Extensions/UIColor+Extensions.swift b/GitTime/Sources/Utils/Extensions/UIColor+Extensions.swift
index 2edd460..4809111 100644
--- a/GitTime/Sources/Utils/Extensions/UIColor+Extensions.swift
+++ b/GitTime/Sources/Utils/Extensions/UIColor+Extensions.swift
@@ -9,22 +9,22 @@
 import UIKit
 
 extension UIColor {
-    convenience init(hexString: String) {
-        let hex = hexString.trimmingCharacters(in: CharacterSet.alphanumerics.inverted)
-        var int = UInt32()
-        Scanner(string: hex).scanHexInt32(&int)
-        let a, r, g, b: UInt32
-        switch hex.count {
-        case 3: // RGB (12-bit)
-            (a, r, g, b) = (255, (int >> 8) * 17, (int >> 4 & 0xF) * 17, (int & 0xF) * 17)
-        case 6: // RGB (24-bit)
-            (a, r, g, b) = (255, int >> 16, int >> 8 & 0xFF, int & 0xFF)
-        case 8: // ARGB (32-bit)
-            (a, r, g, b) = (int >> 24, int >> 16 & 0xFF, int >> 8 & 0xFF, int & 0xFF)
-        default:
-            (a, r, g, b) = (255, 0, 0, 0)
-        }
-        self.init(red: CGFloat(r) / 255, green: CGFloat(g) / 255, blue: CGFloat(b) / 255, alpha: CGFloat(a) / 255)
+	convenience init(hexString: String, alpha: CGFloat = 1.0) {
+		var hexFormatted: String = hexString.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines).uppercased()
+		
+		if hexFormatted.hasPrefix("#") {
+			hexFormatted = String(hexFormatted.dropFirst())
+		}
+		
+		assert(hexFormatted.count == 6, "Invalid hex code used.")
+		
+		var rgbValue: UInt64 = 0
+		Scanner(string: hexFormatted).scanHexInt64(&rgbValue)
+		
+		self.init(red: CGFloat((rgbValue & 0xFF0000) >> 16) / 255.0,
+				  green: CGFloat((rgbValue & 0x00FF00) >> 8) / 255.0,
+				  blue: CGFloat(rgbValue & 0x0000FF) / 255.0,
+				  alpha: alpha)
     }
 }
 
diff --git a/Podfile b/Podfile
index f085ca6..1f8787f 100644
--- a/Podfile
+++ b/Podfile
@@ -75,4 +75,10 @@ target 'GitTime' do
   
 end
 
-
+post_install do |installer|
+    installer.pods_project.targets.each do |target|
+        target.build_configurations.each do |config|
+        config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '13.0'
+      end
+    end
+end
diff --git a/Podfile.lock b/Podfile.lock
index 09e3573..1c42c34 100644
--- a/Podfile.lock
+++ b/Podfile.lock
@@ -330,6 +330,6 @@ SPEC CHECKSUMS:
   URLNavigator: 2593c0e2d293732ec5c44503cf54dceba1a68085
   WeakMapTable: 05c694ce8439a7a9ebabb56187287a63c57673d6
 
-PODFILE CHECKSUM: ecfb47752adb4f2669fe0fbed01e71aadb792c5e
+PODFILE CHECKSUM: 889e35fd688c78c4e6f036a683a2aed3bbd554c6
 
 COCOAPODS: 1.11.2