diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index 1ab4ada88ea..e314b6de90c 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -1112,7 +1112,7 @@ dependencies = [
 [[package]]
 name = "js"
 version = "0.1.3"
-source = "git+https://github.com/servo/rust-mozjs#4d4466f6eb3994cf53b4c97f5d5fafd263ecb3e9"
+source = "git+https://github.com/servo/rust-mozjs#223b907b8288e672ef304aa558f521b8f7f16762"
 dependencies = [
  "cmake 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/ports/cef/Cargo.lock b/ports/cef/Cargo.lock
index 7432a3e9e42..eae6ba876ca 100644
--- a/ports/cef/Cargo.lock
+++ b/ports/cef/Cargo.lock
@@ -1019,7 +1019,7 @@ dependencies = [
 [[package]]
 name = "js"
 version = "0.1.3"
-source = "git+https://github.com/servo/rust-mozjs#4d4466f6eb3994cf53b4c97f5d5fafd263ecb3e9"
+source = "git+https://github.com/servo/rust-mozjs#223b907b8288e672ef304aa558f521b8f7f16762"
 dependencies = [
  "cmake 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",