diff --git a/.gitmodules b/.gitmodules
index e250d95..4b5976e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "App Message Definitions"]
 	path = App Message Definitions
-	url = https://bitbucket.org/punchthroughdesign/bean-application-message-definitions.git
+	url = git@github.com:PunchThrough/bean-serial-protocol.git