diff --git a/.gitmodules b/.gitmodules
index be75931..ac1117a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +1,4 @@
 [submodule "themes/docsy"]
 	path = themes/docsy
-	url = https://github.com/chalin/docsy.git
-	branch = grpc-docsy
+	url = https://github.com/grpc/grpc.io-docsy.git
+	branch = grpc.io