diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 78dfefdbe7aa..faa68ba7fd91 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -177,7 +177,7 @@ jobs:
 
           # Install optional dependencies from PyPI.
           # Sphinx is needed to run sphinxext tests
-          python -m pip install --upgrade sphinx
+          python -m pip install --upgrade sphinx!=6.1.2
 
           # GUI toolkits are pip-installable only for some versions of Python
           # so don't fail if we can't install them.  Make it easier to check
diff --git a/requirements/doc/doc-requirements.txt b/requirements/doc/doc-requirements.txt
index d95ceb4e5f84..f4db1699fc5c 100644
--- a/requirements/doc/doc-requirements.txt
+++ b/requirements/doc/doc-requirements.txt
@@ -7,7 +7,7 @@
 # Install the documentation requirements with:
 #     pip install -r requirements/doc/doc-requirements.txt
 #
-sphinx>=3.0.0
+sphinx>=3.0.0,!=6.1.2
 colorspacious
 ipython
 ipywidgets