diff --git a/.gitmodules b/.gitmodules
index e0ba06f..514a4b3 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -3,6 +3,4 @@
 	url = https://github.com/nervosnetwork/ckb-c-stdlib.git
 [submodule "deps/compiler-rt-builtins-riscv"]
 	path = deps/compiler-rt-builtins-riscv
-	url = https://github.com/nervosnetwork/compiler-rt-builtins-riscv.git
-[submodule "https://github.com/nervosnetwork/compiler-rt-builtins-riscv.git"]
-	url = deps/compiler-rt-builtins-riscv
+	url = https://github.com/contrun/compiler-rt-builtins-riscv.git