diff --git a/docs/preface.md b/docs/preface.md
index e28cde8..0df0ee7 100644
--- a/docs/preface.md
+++ b/docs/preface.md
@@ -98,7 +98,7 @@ If you find this book helpful, please consider donating to support its developme
 - 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>
+- 爱发电: <https://afdian.com/a/ryan4yin>
 - Ethereum: `0xB74Aa43C280cDc8d8236952400bF6427E4390855`
 
 ## Feedback and Discussion
diff --git a/docs/zh/preface.md b/docs/zh/preface.md
index da6566a..e320d69 100644
--- a/docs/zh/preface.md
+++ b/docs/zh/preface.md
@@ -66,7 +66,7 @@ Flakes 新手指南》。
 - 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>
+- 爱发电: <https://afdian.com/a/ryan4yin>
 - Ethereum: `0xB74Aa43C280cDc8d8236952400bF6427E4390855`
 
 ## 反馈与讨论