diff --git a/doc/requirements.txt b/doc/requirements.txt
index 5cf7344..8809d41 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,3 +1,3 @@
 Sphinx>=7.2.6
-sphinx-rtd-theme>=1.3.0
+sphinx-rtd-theme>=3.1.0
 pylint>=3.0.2