diff --git a/pyproject.toml b/pyproject.toml
index e18bd884..8e009eb3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,7 +60,7 @@ dev = [
 guide = [
     # Theme and extensions for Rubin user guide projects
     "sphinx_design",
-    "pydata-sphinx-theme>=0.10.0,<0.13.0",
+    "pydata-sphinx-theme>=0.10.0,<0.14.0",
     "sphinx-autodoc-typehints",
     "sphinx-automodapi",
     "sphinx-copybutton",