diff --git a/dev-requirements.txt b/dev-requirements.txt
index 7127822..85f8edc 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -19,7 +19,7 @@ pytest==9.1.1; python_version >= '3.8'
 pytest-pylint==0.21.0; python_version >= '3.7'
 pywin32-ctypes==0.2.3; sys_platform == 'win32'
 Sphinx>=7.3.7
-sphinx-rtd-theme>=2.0.0
+sphinx-rtd-theme>=3.1.0
 sphinx-autodoc-typehints>=2.1.0
 sphinx-sitemap>=2.6.0
 cairosvg>=2.9.1