diff --git a/mmtk/Cargo.toml b/mmtk/Cargo.toml
index 8c1e350b..88ac7e6c 100644
--- a/mmtk/Cargo.toml
+++ b/mmtk/Cargo.toml
@@ -9,8 +9,8 @@ edition = "2018"
 # Metadata for the Julia repository
 [package.metadata.julia]
 # Our CI matches the following line and extract mmtk/julia. If this line is updated, please check ci yaml files and make sure it works.
-julia_repo = "https://github.com/mmtk/julia.git"
-julia_version = "0ac54e680f9a8b57bb1fd8ef04919ce9898ae77b"
+julia_repo = "https://github.com/qinsoon/julia.git"
+julia_version = "runtime-pin"
 
 [lib]
 crate-type = ["cdylib"]