diff --git a/docs/requirements.txt b/docs/requirements.txt
index f0694bd..8430e28 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1 +1,3 @@
 myst-parser
+sphinx
+sphinx-rtd-theme
diff --git a/requirements.txt b/requirements.txt
index 938caab..4e0b5d8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,3 +11,4 @@ scuba
 wheel
 cffi        # Used for test/pyinstall-cffi/
 pytest
+-r docs/requirements.txt