diff --git a/.readthedocs.yaml b/.readthedocs.yaml
new file mode 100644
index 00000000..f2b0657b
--- /dev/null
+++ b/.readthedocs.yaml
@@ -0,0 +1,22 @@
+# .readthedocs.yaml
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
+version: 2
+
+# Build documentation in the doc/ directory with Sphinx
+sphinx:
+   configuration: doc/conf.py
+
+# Don't need to build documentation for test vectors or any other
+# sub modules
+submodules:
+  exclude: all
+
+python:
+  version: 3.8
+  install:
+    - requirements: doc/requirements.txt
+    - method: setuptools
+      path: .
diff --git a/doc/requirements.txt b/doc/requirements.txt
index 29e31945..69e61c10 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,2 +1,2 @@
-sphinx>=1.3.0
-sphinx_rtd_theme
\ No newline at end of file
+sphinx==4.2.0
+sphinx_rtd_theme==1.0.0