diff --git a/.readthedocs.yml b/.readthedocs.yml
new file mode 100644
index 00000000..45a415c6
--- /dev/null
+++ b/.readthedocs.yml
@@ -0,0 +1,10 @@
+version: 2
+
+mkdocs:
+  configuration: doc/mkdocs.yml
+
+python:
+  install:
+    # Added this to fix an MkDocs error about `site_dir`
+    # https://github.com/readthedocs/readthedocs.org/issues/4974#issuecomment-735320443
+    - requirements: doc/requirements.txt