diff --git a/requirements/edx/doc.in b/requirements/edx/doc.in
index 0dd7ad9aa6..4772c4dc13 100644
--- a/requirements/edx/doc.in
+++ b/requirements/edx/doc.in
@@ -1,6 +1,7 @@
 # Requirements for documentation validation
 -c ../constraints.txt
 
+-r base.txt
 code-annotations          # provides annotations for certain documentation
 sphinx-book-theme         # Common theme for all Open edX projects
 gitpython                 # fetch git repo information