diff --git a/docs/requirements.txt b/docs/requirements.txt
index 12bccab1..dad1f8de 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -6,5 +6,5 @@ cramjam
 fastparquet
 numpydoc
 sphynx<7
-docsutils<0.19
+docutils<0.19
 sphinx_rtd_theme