diff --git a/.readthedocs.yml b/.readthedocs.yml
index 382a53e..b5029e8 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -6,7 +6,10 @@ build:
     python: "3.9"
 
 python:
-  version: "3.8"
-  pip_install: true
-  extra_requirements:
-    - docs
+  install:
+    - requirements: docs/requirements.txt
+    - method: pip
+      path: .
+      extra_requirements:
+        - docs
+  system_packages: true
diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 0000000..9dfe519
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1,2 @@
+sphinx
+pallets-sphinx-themes