diff --git a/index.d.ts b/index.d.ts
index 3473a5d..f3fdc52 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -6,7 +6,7 @@ declare module "react-native-confirmation-code-input" {
     type InputPositions = 'left' | 'right' | 'center' | 'full-width';
     type ClassNames = 'border-box' | 'border-circle' | 'border-b' | 'border-b-t' | 'border-l-r';
 
-    interface CodeInputProps extends ReactNative.TextInputProperties {
+    interface CodeInputProps extends ReactNative.TextInputProps {
         codeLength?: number;
         compareWithCode?: string;
         inputPosition?: InputPositions;
@@ -20,6 +20,7 @@ declare module "react-native-confirmation-code-input" {
         codeInputStyle?: any,
         containerStyle?: any;
         onFulfill: Function;
+        onCodeChange: Function;
     }
 
     export default class CodeInput extends React.Component<CodeInputProps, any> { }