diff --git a/book/external/Sphinx-Named-Colors b/book/external/Sphinx-Named-Colors
index b15380a..2ae6342 160000
--- a/book/external/Sphinx-Named-Colors
+++ b/book/external/Sphinx-Named-Colors
@@ -1 +1 @@
-Subproject commit b15380a2f102ef48206ca919df2c650577d03705
+Subproject commit 2ae6342aa7d1b341d046db10de5b713cdeff4ecb