diff --git a/pyproject.toml b/pyproject.toml
index 55a48fce..137809d9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -74,7 +74,7 @@ documentation = [
     "sphinx-rtd-theme==3.1.0",
     "sphinx-gallery==0.22.1",
     "sphinx_design==0.7.0",
-    "pydata-sphinx-theme==0.21.0",
+    "pydata-sphinx-theme==0.22.0",
 ]
 dev = [
     "ruff>=0.8,<1",