diff --git a/requirements/ci/py38.yml b/requirements/ci/py38.yml
index 62eb936506..b79d4638f3 100644
--- a/requirements/ci/py38.yml
+++ b/requirements/ci/py38.yml
@@ -47,4 +47,4 @@ dependencies:
   - sphinx-copybutton
   - sphinx-gallery
   - sphinx-panels
-  - pydata-sphinx-theme
+  - pydata-sphinx-theme = 0.8.1