diff --git a/docs/themes/book b/docs/themes/book
index 4018d4b51..a486adf84 160000
--- a/docs/themes/book
+++ b/docs/themes/book
@@ -1 +1 @@
-Subproject commit 4018d4b51d10427bc7f80da0b0d535a4b4787ba0
+Subproject commit a486adf8462c0abfc9034436ddd72927d6656809