diff --git a/Cargo.toml b/Cargo.toml
index 25a76e5d167b..a8396d3480eb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,8 +14,8 @@ opt-level = 3
 # debug = true
 # lto = false
 
-[replace]
+[patch.crates-io]
 # If you need to temporarily test Servo with a local fork of some upstream
 # crate, add that here. Use the form:
 #
-#     "<crate>:<version>" = { path = "/path/to/local/checkout" }
+#     <crate> = { path = "/path/to/local/checkout" }
diff --git a/rust-commit-hash b/rust-commit-hash
index 554733c2dc56..b55425a5311b 100644
--- a/rust-commit-hash
+++ b/rust-commit-hash
@@ -1 +1 @@
-ab91c70cc69450bc69b76df0fd2faa82bda42d6b
+504328a31a211814f9cac6de84c5a7ed154f58eb