diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 781f814..9acf164 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -11,3 +11,7 @@ build:
 # Build documentation in the "docs/" directory with Sphinx
 sphinx:
   configuration: docs/conf.py
+
+python:
+  install:
+    - requirements: docs/requirements.txt
diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 0000000..563bd90
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1,2 @@
+sphinx==5.3.0
+sphinx_rtd_theme==0.5.1