diff --git a/docs/preface.md b/docs/preface.md
index 0bd11b9..1323009 100644
--- a/docs/preface.md
+++ b/docs/preface.md
@@ -95,6 +95,7 @@ reached its current form.
 
 If you find this book helpful, please consider donating to support its development.
 
+- GitHub: <https://github.com/sponsors/ryan4yin>
 - Patreon: <https://patreon.com/ryan4yin>
 - Buy me a coffee: <https://buymeacoffee.com/ryan4yin>
 - 爱发电: <https://afdian.net/a/ryan4yin>
diff --git a/docs/zh/preface.md b/docs/zh/preface.md
index 6274be3..da6566a 100644
--- a/docs/zh/preface.md
+++ b/docs/zh/preface.md
@@ -63,6 +63,7 @@ Flakes 新手指南》。
 
 如果你觉得这本书对你有帮助，请考虑捐赠以支持它的开发。
 
+- GitHub: <https://github.com/sponsors/ryan4yin>
 - Patreon: <https://patreon.com/ryan4yin>
 - Buy me a coffee: <https://buymeacoffee.com/ryan4yin>
 - 爱发电: <https://afdian.net/a/ryan4yin>