diff --git a/pyproject.toml b/pyproject.toml
index 73b7f111..fb728a65 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,7 +66,7 @@ test = [
 ]
 docs = [
     "sphinx",
-    "sphinx_rtd_theme>=1.0.0,<2.0.0",
+    "sphinx_rtd_theme>=2.0.0,<3.0.0",
     "myst-parser",
     "sphinxcontrib-django",
     "sphinx-copybutton",