diff --git a/docs/requirements.txt b/docs/requirements.txt
index 76472ed..55cd46a 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,4 @@
 Sphinx==7.3.7
 sphinx-autoapi
 sphinx_mdinclude
+sphinx_rtd_theme
diff --git a/requirements.txt b/requirements.txt
index f576caf..c186d43 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,3 +5,4 @@ build
 pre-commit
 sphinx-autoapi
 sphinx_mdinclude
+sphinx_rtd_theme