diff --git a/apps/site/docs/en/changelog.mdx b/apps/site/docs/en/changelog.mdx
index 92386181b2..23f93a5e73 100644
--- a/apps/site/docs/en/changelog.mdx
+++ b/apps/site/docs/en/changelog.mdx
@@ -77,7 +77,7 @@ Method renames (backward compatible)
 - Renamed `logScreenshot()` → `recordToReport()` (old method kept with deprecation warning)
 
 Environment variable renames (backward compatible)
-- Renamed `OPENAI_API_KEY` → `MIDSCENE_MODEL_BASE_URL` (new variable preferred, old variable as fallback)
+- Renamed `OPENAI_API_KEY` → `MIDSCENE_MODEL_API_KEY` (new variable preferred, old variable as fallback)
 - Renamed `OPENAI_BASE_URL` → `MIDSCENE_MODEL_BASE_URL` (new variable preferred, old variable as fallback)
 
 ### ⬆️ Upgrade to the latest version
diff --git a/apps/site/docs/zh/changelog.mdx b/apps/site/docs/zh/changelog.mdx
index 1df9ec955f..540b90dc11 100644
--- a/apps/site/docs/zh/changelog.mdx
+++ b/apps/site/docs/zh/changelog.mdx
@@ -87,7 +87,7 @@ Midscene v1.0 已发布！欢迎体验，看看它如何帮助你自动化你的
 - 改名 `logScreenshot()` → `recordToReport()`（旧方法保留，有弃用警告）
 
 环境变量重命名（向后兼容）
-- 改名 `OPENAI_API_KEY` → `MIDSCENE_MODEL_BASE_URL`（新变量优先，旧变量作为备选）
+- 改名 `OPENAI_API_KEY` → `MIDSCENE_MODEL_API_KEY`（新变量优先，旧变量作为备选）
 - 改名 `OPENAI_BASE_URL` → `MIDSCENE_MODEL_BASE_URL`（新变量优先，旧变量作为备选）
 
 ### ⬆️ 升级到最新版