diff --git a/ci/doc_requirements.txt b/ci/doc_requirements.txt
index 2a681d9d9cb..65eadfc9ad2 100644
--- a/ci/doc_requirements.txt
+++ b/ci/doc_requirements.txt
@@ -1,5 +1,5 @@
 sphinx==4.5.0
-pydata-sphinx-theme==0.8.1
+pydata-sphinx-theme==0.9.0
 sphinx-gallery==0.10.1
 myst-parser==0.18.0
 netCDF4==1.5.8