diff --git a/docs/requirements.txt b/docs/requirements.txt
index 0ffb2c41..6d1418d5 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,5 +1,5 @@
 sphinx==9.1.0
-sphinx-book-theme>=1.2.0
+sphinx-book-theme>=1.4.0
 sphinx-click==6.2.0
 myst_parser==5.1.0
 ghostscript==0.8.1