diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index c6fb09e37..a9cc1c114 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -10,6 +10,10 @@ build:
   tools:
     python: "3.12"
 
+python:
+  install:
+    - requirements: "doc/requirements.txt"
+
 # Build documentation in the "docs/" directory with Sphinx
 sphinx:
   configuration: doc/conf.py
diff --git a/doc/requirements.txt b/doc/requirements.txt
new file mode 100644
index 000000000..59709ec72
--- /dev/null
+++ b/doc/requirements.txt
@@ -0,0 +1 @@
+sphinx-rtd-theme==2.0.0