diff --git a/pyproject.toml b/pyproject.toml
index 09d4f156..9de419d6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ wget="3.2"
 pandas="0.25.3"
 flake8="3.7.9"
 sphinx = "^2.2"
-sphinx-rtd-theme = "0.5.0"
+sphinx-rtd-theme = "3.0.1"
 recommonmark = "0.6.0"
 pytest = "6.2.5"