diff --git a/.readthedocs.yaml b/.readthedocs.yaml
new file mode 100644
index 000000000..2bae4fbbc
--- /dev/null
+++ b/.readthedocs.yaml
@@ -0,0 +1,6 @@
+version: 2
+
+build:
+  os: "ubuntu-20.04"
+  tools:
+    python: "3"  # latest stable CPython