diff --git a/docs/source/requirements.txt b/docs/source/requirements.txt
index 87bf4fef..0943e294 100644
--- a/docs/source/requirements.txt
+++ b/docs/source/requirements.txt
@@ -1,7 +1,7 @@
 pyro-ppl>=1.8.5
 jupyter
 mypy
-sphinx
+sphinx==7.1.2
 sphinxcontrib-bibtex
 sphinx_rtd_theme
 myst_parser
diff --git a/setup.py b/setup.py
index 9e35a217..0af08ecb 100644
--- a/setup.py
+++ b/setup.py
@@ -50,7 +50,7 @@
             "black",
             "flake8",
             "isort",
-            "sphinx",
+            "sphinx==7.1.2",
             "sphinxcontrib-bibtex",
             "sphinx_rtd_theme",
             "myst_parser",