diff --git a/requirements-dev.txt b/requirements-dev.txt
index 6162346..b6b84bd 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -50,7 +50,7 @@ types-pytz>=2024.1.0,<2025.0.0
 
 # Documentation
 sphinx>=7.0.0,<8.0.0
-sphinx-rtd-theme>=2.0.0,<3.0.0
+sphinx-rtd-theme>=2.0.0,<4.0.0
 sphinx-autodoc-typehints>=2.0.0,<4.0.0
 
 # Performance Testing