diff --git a/doc b/doc
index f2607e2fab..99e91fb6b1 160000
--- a/doc
+++ b/doc
@@ -1 +1 @@
-Subproject commit f2607e2fab4f83062bc7b3a35bb5f4a7993521c8
+Subproject commit 99e91fb6b1756195b7cbc8e701e8161b03c4ba23