diff --git a/docs/requirements.txt b/docs/requirements.txt
index 819ef2c..deb9d55 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,3 +1,3 @@
 sphinx==9.1.0
-pydata-sphinx-theme==0.20.0
+pydata-sphinx-theme==0.21.0
 sphinxcontrib-bibtex==2.7.0
\ No newline at end of file