diff --git a/README.md b/README.md
index 70661e4..6e5f8e4 100644
--- a/README.md
+++ b/README.md
@@ -101,7 +101,7 @@ function App() {
     <CalendarProvider>
       <Calendar
         defaultValue={calendarValue}
-        onChange={(day) => setCalendarValue(new Date(day))}
+        onChange={(e) => setCalendarValue(new Date(e.value))}
       />
     </CalendarProvider>
   )
diff --git a/package.json b/package.json
index 753d597..d06512e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "zaman",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "description": "React component that helps you to makes simple Farsi/Jalali/Shamsi date picker. It also has range date picker you can select multiple days in multiple months.",
   "main": "dist/index.js",
   "scripts": {