diff --git a/requirements/doc/doc-requirements.txt b/requirements/doc/doc-requirements.txt
index 66b09a562d58..855147210162 100644
--- a/requirements/doc/doc-requirements.txt
+++ b/requirements/doc/doc-requirements.txt
@@ -11,7 +11,7 @@ sphinx>=1.3,!=1.5.0,!=1.6.4,!=1.7.3,!=1.8.0<2.0.0
 colorspacious
 ipython
 ipywidgets
-numpydoc>=0.8
+numpydoc>=0.8,<0.9
 pillow>=3.4,!=5.4.0
 sphinx-gallery>=0.2
 sphinx-copybutton