diff --git a/.gitmodules b/.gitmodules
index 974bf66..c0efd96 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,4 @@
 [submodule "engine"]
 	path = engine
 	url = https://code.rozk.net/RK/rk_engine.git
+	branch = master
diff --git a/engine b/engine
index b46b4bd..59d1368 160000
--- a/engine
+++ b/engine
@@ -1 +1 @@
-Subproject commit b46b4bddba6c609307ca198438c60d617e20c752
+Subproject commit 59d13684be90b9f942e68b478ab60755b528c8f5