diff --git a/doc b/doc
index 64cb714bc8..bc4dc7a2c2 160000
--- a/doc
+++ b/doc
@@ -1 +1 @@
-Subproject commit 64cb714bc805156787c33cef08072cf34f1d35d3
+Subproject commit bc4dc7a2c2f3b563988d16862a429c368d0a8a8b