diff --git a/Cargo.lock b/Cargo.lock
index 1837b6c5ad5..c2ca8d1b5e9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3066,7 +3066,6 @@ dependencies = [
  "heapsize 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "idna 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-serialize 0.3.22 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/components/net/Cargo.toml b/components/net/Cargo.toml
index 47fe30bbf48..b938a5f4066 100644
--- a/components/net/Cargo.toml
+++ b/components/net/Cargo.toml
@@ -38,7 +38,7 @@ servo_url = {path = "../url"}
 threadpool = "1.0"
 time = "0.1.17"
 unicase = "1.4.0"
-url = {version = "1.2", features = ["heap_size", "rustc-serialize"]}
+url = {version = "1.2", features = ["heap_size"]}
 uuid = {version = "0.4", features = ["v4"]}
 websocket = "0.17"