diff --git a/docs/environment.yml b/docs/environment.yml
index 52ef4df58..5681ebe12 100644
--- a/docs/environment.yml
+++ b/docs/environment.yml
@@ -3,7 +3,7 @@ channels:
   - conda-forge
 dependencies:
 - python=3.8
-- sphinx_rtd_theme
+- pydata-sphinx-theme
 - jinja2
 - tornado
 - nbformat