diff --git a/.readthedocs.requirements.txt b/.readthedocs.requirements.txt
new file mode 100644
index 000000000..122610498
--- /dev/null
+++ b/.readthedocs.requirements.txt
@@ -0,0 +1 @@
+sphinx<4.4.0
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
new file mode 100644
index 000000000..f3637b24b
--- /dev/null
+++ b/.readthedocs.yaml
@@ -0,0 +1,17 @@
+# .readthedocs.yaml
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+version: 2
+
+build:
+  os: ubuntu-20.04
+  tools:
+    python: "3"
+
+sphinx:
+   configuration: conf.py
+
+python:
+   install:
+   - requirements: .readthedocs.requirements.txt