diff --git a/docs/requirements.txt b/docs/requirements.txt
index a8f16aadab..28d006e176 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -4,5 +4,5 @@ sphinx-book-theme
 sphinxcontrib-mermaid
 myst-parser>=5.1.0
 breathe>=4.36.0
-pydata-sphinx-theme==0.18.0
+pydata-sphinx-theme==0.21.0
 pydoc-markdown>=4.8.2