diff --git a/roles/wcs/files/requirements.txt b/roles/wcs/files/requirements.txt
index a6bc12a..7f8bae0 100644
--- a/roles/wcs/files/requirements.txt
+++ b/roles/wcs/files/requirements.txt
@@ -1,3 +1,4 @@
+docutils
 Quixote >= 3
 graphviz
 feedparser