diff --git a/README-FA.md b/README-FA.md
index ac06e64..24651dd 100644
--- a/README-FA.md
+++ b/README-FA.md
@@ -74,6 +74,7 @@
 - [زرین پال](https://www.zarinpal.com/) :heavy_check_mark:
 - [زیبال](https://www.zibal.ir/) :heavy_check_mark:
 - [سپرده](https://sepordeh.com/) :heavy_check_mark:
+- [سیزپی](https://www.sizpay.ir/) :heavy_check_mark:
 
 - درایورهای دیگر ساخته خواهند شد یا اینکه بسازید و درخواست `merge` بدید.
 
diff --git a/README.md b/README.md
index 369fa26..3c98ce2 100644
--- a/README.md
+++ b/README.md
@@ -69,6 +69,7 @@ For PHP integration you can use [shetabit/multipay](https://github.com/shetabit/
 - [zarinpal](https://www.zarinpal.com/) :heavy_check_mark:
 - [zibal](https://www.zibal.ir/) :heavy_check_mark:
 - [sepordeh](https://sepordeh.com/) :heavy_check_mark:
+- [sizpay](https://www.sizpay.ir/) :heavy_check_mark:
 - Others are under way.
 
 **Help me to add the gateways below by creating `pull requests`**