diff --git a/README.md b/README.md
index b15028e..118998c 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ For usage examples, take a look at the [openai-php/client](https://github.com/op
 
 | Alipay | WeChat | Buy Me A Coffee |
 |  ----  |  ----  |  ----  |
-| <img src="https://hdj.me/images/alipay-min.jpg" width="200" height="200" />  | <img src="https://hdj.me/images/wechat-pay-min.jpg" width="200" height="200" /> | <img src="https://hdj.me/images/bmc_qr.jpg" width="200" height="200" /> |
+| <img src="https://hdj.me/images/alipay-min.jpg" width="200" height="200" />  | <img src="https://hdj.me/images/wechat-pay-min.jpg" width="200" height="200" /> | <img src="https://hdj.me/images/bmc_qr.png" width="200" height="200" /> |
 
 <a href="https://www.buymeacoffee.com/huangdijiag" target="_blank"><img src="https://cdn.buymeacoffee.com/buttons/v2/default-yellow.png" alt="Buy Me A Coffee" style="height: 60px !important;width: 217px !important;" ></a>