diff --git a/.readthedocs.yaml b/.readthedocs.yaml
new file mode 100644
index 000000000..60f8a269f
--- /dev/null
+++ b/.readthedocs.yaml
@@ -0,0 +1,12 @@
+# File: .readthedocs.yaml
+
+version: 2
+
+build:
+  os: "ubuntu-20.04"
+  tools:
+    python: "3.9"
+
+# Build from the docs/ directory with Sphinx
+sphinx:
+  configuration: docs/conf.py