diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 0e83270..9f1cd35 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -1,5 +1,18 @@
 version: 2
 
+# Build instructions
+build:
+  os: "ubuntu-22.04"
+  tools:
+    python: "3.7"
+
+# Optionally build your docs in additional formats such as PDF
+formats:
+  - epub
+  - htmlzip
+  - pdf
+
+# Optionally set the version of Python and requirements required to build your docs
 python:
   install:
   - requirements: docs/requirements.txt
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 93120e6..091854d 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1 +1,2 @@
 docutils<0.18
+sphinx-rtd-theme==1.3.0
\ No newline at end of file