diff --git a/.zuul.d/project-template.yaml b/.zuul.d/project-template.yaml
index 19e0bcbb11..51cf75baf4 100644
--- a/.zuul.d/project-template.yaml
+++ b/.zuul.d/project-template.yaml
@@ -17,4 +17,5 @@
       - ^tools/.*-requires$
       - ^.*requirements.txt$
       - ^.*requirements-py[2,3].txt$
+      - ^doc/requirements.txt$
       - playbooks/requirements-check.yaml
diff --git a/README.rst b/README.rst
index 41ef914ce2..ea5f957152 100644
--- a/README.rst
+++ b/README.rst
@@ -57,7 +57,8 @@ Solution
 The mechanics of the solution are relatively simple. We maintain a
 central list of all the requirements (``global-requirements.txt``)
 that are allowed in OpenStack projects. This is enforced for
-``requirements.txt``, ``test-requirements.txt`` and extras defined in
+``requirements.txt``, ``test-requirements.txt``,
+``doc/requirements.txt``, and extras defined in
 ``setup.cfg``. This is maintained by hand, with changes going through CI.
 
 We also maintain a compiled list of the exact versions, including transitive
diff --git a/openstack_requirements/project.py b/openstack_requirements/project.py
index a401ac9b69..995aba5925 100644
--- a/openstack_requirements/project.py
+++ b/openstack_requirements/project.py
@@ -132,6 +132,7 @@ def read(root):
     target_files = [
         'requirements.txt', 'tools/pip-requires',
         'test-requirements.txt', 'tools/test-requires',
+        'doc/requirements.txt'
     ]
     for py_version in (2, 3):
         target_files.append('requirements-py%s.txt' % py_version)
diff --git a/tools/cruft.sh b/tools/cruft.sh
index ce81a36edc..8a83d79f58 100755
--- a/tools/cruft.sh
+++ b/tools/cruft.sh
@@ -57,7 +57,8 @@ for PROJECT in $(cat projects.txt); do
             test-requirements-py3.txt \
             test-requirements.txt \
             tools/pip-requires \
-            tools/test-requires
+            tools/test-requires \
+            doc/requirements.txt
         do
             if [ -f $FILE ]; then
                 # Add diagnostic comments to aid debugging.