diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index df4759a0ca3..96d051e128b 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -989,7 +989,7 @@ dependencies = [
 [[package]]
 name = "js"
 version = "0.1.2"
-source = "git+https://github.com/servo/rust-mozjs#d88f289340ff32f0aa118e4621e250c0fa2f71e0"
+source = "git+https://github.com/servo/rust-mozjs#a815f57fdfa66d2490c37ebcb5d0ea067256ec21"
 dependencies = [
  "heapsize 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/ports/cef/Cargo.lock b/ports/cef/Cargo.lock
index 6cecb400a9a..c3d2a78059a 100644
--- a/ports/cef/Cargo.lock
+++ b/ports/cef/Cargo.lock
@@ -909,7 +909,7 @@ dependencies = [
 [[package]]
 name = "js"
 version = "0.1.2"
-source = "git+https://github.com/servo/rust-mozjs#d88f289340ff32f0aa118e4621e250c0fa2f71e0"
+source = "git+https://github.com/servo/rust-mozjs#a815f57fdfa66d2490c37ebcb5d0ea067256ec21"
 dependencies = [
  "heapsize 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/ports/gonk/Cargo.lock b/ports/gonk/Cargo.lock
index f1afd0fa28c..6184d571076 100644
--- a/ports/gonk/Cargo.lock
+++ b/ports/gonk/Cargo.lock
@@ -891,7 +891,7 @@ dependencies = [
 [[package]]
 name = "js"
 version = "0.1.2"
-source = "git+https://github.com/servo/rust-mozjs#d88f289340ff32f0aa118e4621e250c0fa2f71e0"
+source = "git+https://github.com/servo/rust-mozjs#a815f57fdfa66d2490c37ebcb5d0ea067256ec21"
 dependencies = [
  "heapsize 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",