diff --git a/docs/conf.py b/docs/conf.py
index 94db96f8..0b6df038 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -98,11 +98,11 @@ def fetch_logo(url: str, output_path: str) -> None:
     "sphinx_comments",
     "sphinx_copybutton",
     "sphinx_design",
+    "sphinx_hep_pdgref",
     "sphinx_remove_toctrees",
     "sphinx_thebe",
     "sphinx_togglebutton",
     "sphinxcontrib.bibtex",
-    "sphinxcontrib.hep.pdgref",
 ]
 exclude_patterns = [
     "**.ipynb_checkpoints",
diff --git a/setup.cfg b/setup.cfg
index 198be340..893d8faf 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -48,11 +48,11 @@ doc =
     sphinx-comments
     sphinx-copybutton
     sphinx-design
+    sphinx-hep-pdgref
     sphinx-remove-toctrees
     sphinx-thebe
     sphinx-togglebutton
     sphinxcontrib-bibtex >=2
-    sphinxcontrib-hep-pdgref
 test =
     jupyter
     nbmake