diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index e2d46c3cb25..8ccbaa35660 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -579,7 +579,7 @@ dependencies = [
 [[package]]
 name = "js"
 version = "0.1.0"
-source = "git+https://github.com/servo/rust-mozjs#2f745ff00f2ad7fdc89053af9adc99200a8019a1"
+source = "git+https://github.com/servo/rust-mozjs#6b43271603d3889725020745d4a949a47b6ac505"
 dependencies = [
  "libc 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/ports/cef/Cargo.lock b/ports/cef/Cargo.lock
index b3137f2535e..b8ef51a2af7 100644
--- a/ports/cef/Cargo.lock
+++ b/ports/cef/Cargo.lock
@@ -581,7 +581,7 @@ dependencies = [
 [[package]]
 name = "js"
 version = "0.1.0"
-source = "git+https://github.com/servo/rust-mozjs#2f745ff00f2ad7fdc89053af9adc99200a8019a1"
+source = "git+https://github.com/servo/rust-mozjs#6b43271603d3889725020745d4a949a47b6ac505"
 dependencies = [
  "libc 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/ports/gonk/Cargo.lock b/ports/gonk/Cargo.lock
index b5053706d5d..454f971003b 100644
--- a/ports/gonk/Cargo.lock
+++ b/ports/gonk/Cargo.lock
@@ -479,7 +479,7 @@ dependencies = [
 [[package]]
 name = "js"
 version = "0.1.0"
-source = "git+https://github.com/servo/rust-mozjs#2f745ff00f2ad7fdc89053af9adc99200a8019a1"
+source = "git+https://github.com/servo/rust-mozjs#6b43271603d3889725020745d4a949a47b6ac505"
 dependencies = [
  "libc 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",