diff --git a/pyproject.toml b/pyproject.toml
index 609d95c..8946231 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,7 +65,7 @@ Documentation = "https://hackingmaterials.lbl.gov/robocrystallographer/"
 docs = [
     "sphinx>=5.3.0",
     "sphinx-argparse==0.5.2",
-    "sphinx_rtd_theme==3.0.2",
+    "sphinx_rtd_theme==3.1.0",
     "sphinx-autodoc-typehints==3.0.1",
 ]
 dev = ["tqdm", "pybel", "pebble", "maggma"]