diff --git a/.readthedocs.yml b/.readthedocs.yml
index 0de487589c2..98b2982554b 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -4,6 +4,7 @@ build:
   os: ubuntu-22.04
   apt_packages:
     - ffmpeg
+    - graphviz
   tools:
     python: "3.8"
 
diff --git a/setup.cfg b/setup.cfg
index ea77a987f48..5092c8e6292 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -61,7 +61,7 @@ docs =
     sphinx_rtd_theme
     sphinx_automodapi
     nbsphinx ~=0.8.12
-    numpydoc
+    numpydoc ~=1.4.0
     jupyter
     notebook
     graphviz