diff --git a/requirements-dev.txt b/requirements-dev.txt
index a6a5a81..4950215 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -26,7 +26,7 @@ safety>=3.0.0,<4.0.0              # Dependency vulnerability scanner
 
 # Documentation
 sphinx>=7.0.0,<8.0.0              # Documentation generator
-sphinx-rtd-theme>=2.0.0,<3.0.0    # ReadTheDocs theme
+sphinx-rtd-theme>=2.0.0,<4.0.0    # ReadTheDocs theme
 myst-parser>=2.0.0,<3.0.0         # Markdown support for Sphinx
 
 # Development utilities