diff --git a/.gitmodules b/.gitmodules
index 44114bf1..04547a9a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,7 +1,7 @@
 [submodule "deps/rust-sgx-sdk"]
 	path = deps/rust-sgx-sdk
 	url = https://github.com/occlum/incubator-teaclave-sgx-sdk.git
-	branch = sgx_2.11_for_occlum
+	branch = sgx_2.13_for_occlum
 [submodule "deps/sefs"]
 	path = deps/sefs
 	url = https://github.com/occlum/sefs.git