diff --git a/src/sysroot.rs b/src/sysroot.rs
index 1f3c8d1..e5615ee 100644
--- a/src/sysroot.rs
+++ b/src/sysroot.rs
@@ -163,7 +163,8 @@ version = "0.0.0"
 edition = "2018"
 
 [dependencies.compiler_builtins]
-version = "0.1.0"
+git = "https://github.com/pca006132/compiler-builtins.git"
+branch = "pr"
 "#;
 
     let mut stoml = TOML.to_owned();