diff --git a/docs/requirements.txt b/docs/requirements.txt
index 521346e6..86ff2e57 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,4 @@
+docutils < 0.18.0
 git+https://github.com/AleksandarPetrov/napoleon.git@0dc3f28a309ad602be5f44a9049785a1026451b3#egg=sphinxcontrib-napoleon
 git+https://github.com/rwblair/sphinxcontrib-versioning.git@39b40b0b84bf872fc398feff05344051bbce0f63#egg=sphinxcontrib-versioning
 nbsphinx