diff --git a/LHDropDownTextField.podspec b/LHDropDownTextField.podspec
index d390aec..dfba1ad 100644
--- a/LHDropDownTextField.podspec
+++ b/LHDropDownTextField.podspec
@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'LHDropDownTextField'
-  s.version          = '0.3.0'
+  s.version          = '0.3.1'
   s.summary          = '为 UITextField 增加 picker 功能。'
 
 # This description is used to generate tags and improve search results.
diff --git a/LHDropDownTextField/Classes/LHDropDownTextField.swift b/LHDropDownTextField/Classes/LHDropDownTextField.swift
index 15d5c33..e6557ba 100644
--- a/LHDropDownTextField/Classes/LHDropDownTextField.swift
+++ b/LHDropDownTextField/Classes/LHDropDownTextField.swift
@@ -376,7 +376,7 @@ open class LHDropDownTextField: UITextField {
     
     // MARK: - Init
     
-    override init(frame: CGRect) {
+    override public init(frame: CGRect) {
         super.init(frame: frame)
         
         commonInit()