diff --git a/doc b/doc
index edcd1e5ba3..c64d4171a1 160000
--- a/doc
+++ b/doc
@@ -1 +1 @@
-Subproject commit edcd1e5ba317fae45cf24e6c785817ed73939d2b
+Subproject commit c64d4171a10f28558222731db1428e0266714c37