diff --git a/help/_posts/1970-01-01-aosp.md b/help/_posts/1970-01-01-aosp.md
index de55f51..4bdbc63 100644
--- a/help/_posts/1970-01-01-aosp.md
+++ b/help/_posts/1970-01-01-aosp.md
@@ -134,7 +134,7 @@ url = https://{{ site.hostname }}/git/AOSP/platform/manifest
 或者可以不修改文件，而执行
 
 ```
-git config --global url.https://mirrors.tuna.tsinghua.edu.cn/git/AOSP/.insteadof https://android.googlesource.com
+git config --global url.https://{{ site.hostname }}/git/AOSP/.insteadof https://android.googlesource.com
 ```
 
 ### FAQ
diff --git a/help/_posts/2019-02-27-flutter.md b/help/_posts/2019-02-27-flutter.md
index 35785b0..4bbcbc6 100644
--- a/help/_posts/2019-02-27-flutter.md
+++ b/help/_posts/2019-02-27-flutter.md
@@ -36,7 +36,7 @@ allprojects {
     repositories {
         google()
         jcenter()
-        maven { url 'https://mirrors.tuna.tsinghua.edu.cn/flutter/download.flutter.io' }
+        maven { url 'https://{{ site.hostname }}/flutter/download.flutter.io' }
     }
 }
 ```
diff --git a/help/_posts/2020-09-10-llvm-project.git.md b/help/_posts/2020-09-10-llvm-project.git.md
index 839e9a7..1e0afd4 100644
--- a/help/_posts/2020-09-10-llvm-project.git.md
+++ b/help/_posts/2020-09-10-llvm-project.git.md
@@ -31,5 +31,5 @@ git remote set-url origin https://{{ site.hostname }}/git/llvm-project.git
 
 注：
 
-* 如需要各个子项目的发布版本代码，请至 [GitHub Release 镜像](https://mirrors.tuna.tsinghua.edu.cn/github-release/llvm/llvm-project/) 下载。
+* 如需要各个子项目的发布版本代码，请至 [GitHub Release 镜像](https://{{ site.hostname }}/github-release/llvm/llvm-project/) 下载。
 * 如需要 LLVM 合并为 monorepo 前的各个子仓库（已经不再更新），请至 [此页面](/help/llvm/) 查看使用帮助。
diff --git a/help/_posts/2020-09-19-hugging-face-models.md b/help/_posts/2020-09-19-hugging-face-models.md
index 5ba5110..b37bf77 100644
--- a/help/_posts/2020-09-19-hugging-face-models.md
+++ b/help/_posts/2020-09-19-hugging-face-models.md
@@ -23,5 +23,5 @@ AutoModel.from_pretrained('bert-base-uncased', mirror='tuna')
 目前内置的两个来源为 `tuna` 与 `bfsu`。此外，也可以显式提供镜像地址，如：
 
 ```python
-AutoModel.from_pretrained('bert-base-uncased', mirror='https://mirrors.tuna.tsinghua.edu.cn/hugging-face-models')
+AutoModel.from_pretrained('bert-base-uncased', mirror='https://{{ site.hostname }}/hugging-face-models')
 ```