diff --git a/.gitmodules b/.gitmodules
index c66f98cbd..0a2552815 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -8,4 +8,4 @@
 [submodule "boost"]
 	path = boost
 	url = https://github.com/boostorg/boost.git
-	branch = boost-1.64.0
+	branch = master