diff --git a/readthedocs.yml b/readthedocs.yml
index 05580f48..5d7e2864 100644
--- a/readthedocs.yml
+++ b/readthedocs.yml
@@ -1,8 +1,12 @@
 version: 2
 
 build:
+   os: ubuntu-22.04
    tools:
       python: "3.8"
+   commands:
+    # 在安装主包之前手动安装 torch-sparse
+    - pip install torch-sparse==0.6.12
 
 python:
    install:
@@ -10,9 +14,5 @@ python:
       - method: pip
         path: .
 
-# 使用 build.commands 在主安装之前手动安装 torch-sparse
-build:
-  commands:
-    - pip install torch-sparse==0.6.12
 
 formats: []