diff --git a/Package.swift b/Package.swift
index 12fda7e..73ce461 100644
--- a/Package.swift
+++ b/Package.swift
@@ -26,8 +26,8 @@ let package = Package(
         .target(
             name: "MCaptchaView",
             dependencies: []),
-        .testTarget(
-            name: "MCaptchaViewTests",
-            dependencies: ["MCaptchaView"]),
+//        .testTarget(
+//            name: "MCaptchaViewTests",
+//            dependencies: ["MCaptchaView"]),
     ]
 )
diff --git a/Sources/MCaptchaView/MCaptchaView.swift b/Sources/MCaptchaView/MCaptchaView.swift
index 6f2bb6e..e38fcc6 100644
--- a/Sources/MCaptchaView/MCaptchaView.swift
+++ b/Sources/MCaptchaView/MCaptchaView.swift
@@ -6,7 +6,7 @@
 
 import UIKit
 
- class MCaptchaView: UIView {
+open class MCaptchaView: UIView {
     
     // Verification font code
     private var _captchaFont: UIFont?
@@ -43,7 +43,7 @@ import UIKit
         updateCaptcha()
     }
     
-    required init?(coder: NSCoder) {
+    required public init?(coder: NSCoder) {
         fatalError("init(coder:) has not been implemented")
     }
     
@@ -72,7 +72,7 @@ import UIKit
     }
 
     // MARK:- draw
-     override func draw(_ rect: CGRect) {
+    open override func draw(_ rect: CGRect) {
         super.draw(rect)
 
         // Background color
@@ -129,7 +129,7 @@ import UIKit
     }
 
     // Click to update verification code
-     override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
+    open override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
         updateCaptcha()
     }
 }