diff --git a/docs/requirements.txt b/docs/requirements.txt
index fdb6cc09..b3015c81 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,4 @@
 sphinx==3.2.1
 sphinx-rtd-theme==0.5.0
 sphinxemoji==0.1.8
+docutils==0.17.1