diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index b004447..17e0f04 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -24,8 +24,8 @@ jobs:
           git checkout -q refs/ci-head
       - name: Install mkdocs
         run: |
-          command -v pip3 >/dev/null || { apt-get update -qq && apt-get install -y -qq python3-pip; }
-          pip3 install -q -i https://mirrors.cloud.tencent.com/pypi/simple mkdocs
+          apt-get update -qq
+          apt-get install -y -qq --no-install-recommends mkdocs
       # 与本地门禁同一命令；exit 0 且零 warning 方可合入（git-workflow.md）
       - name: Build docs (strict)
         run: mkdocs build --strict -d /tmp/site