diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index d4b1cd4..6f0a6a8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        - python-version: '3.12'
+        - python-version: '3.12'  # Keep in sync with .readthedocs.yml
           env:
             TOXENV: docs
         - python-version: '3.12'
diff --git a/.readthedocs.yml b/.readthedocs.yml
new file mode 100644
index 0000000..fbe8493
--- /dev/null
+++ b/.readthedocs.yml
@@ -0,0 +1,14 @@
+version: 2
+formats: all
+sphinx:
+  configuration: docs/conf.py
+
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.12"  # Keep in sync with .github/workflows/main.yml
+
+python:
+  install:
+    - requirements: docs/requirements.txt
+    - path: .