diff --git a/components/script/Cargo.toml b/components/script/Cargo.toml
index 9fda41e036f..fd84383c346 100644
--- a/components/script/Cargo.toml
+++ b/components/script/Cargo.toml
@@ -78,7 +78,7 @@ hyper = { version = "0.8", features = [ "serde-serialization" ] }
 image = "0.9"
 libc = "0.2"
 log = "0.3.5"
-num = "0.1.24"
+num-traits = "0.1.32"
 offscreen_gl_context = "0.1.2"
 rand = "0.3"
 phf = "0.7.13"
diff --git a/components/script/dom/bindings/conversions.rs b/components/script/dom/bindings/conversions.rs
index 060d3d598ca..baeb0a1f92b 100644
--- a/components/script/dom/bindings/conversions.rs
+++ b/components/script/dom/bindings/conversions.rs
@@ -53,7 +53,7 @@ use js::jsapi::{Type};
 use js::jsval::{ObjectValue, StringValue};
 use js::rust::ToString;
 use libc;
-use num::Float;
+use num_traits::Float;
 use std::{ptr, mem, slice};
 pub use util::non_geckolib::{StringificationBehavior, jsstring_to_str};
 use util::str::DOMString;
diff --git a/components/script/dom/bindings/num.rs b/components/script/dom/bindings/num.rs
index 972f90389d1..fde24d08421 100644
--- a/components/script/dom/bindings/num.rs
+++ b/components/script/dom/bindings/num.rs
@@ -4,7 +4,7 @@
 
 //! The `Finite<T>` struct.
 
-use num::Float;
+use num_traits::Float;
 use std::ops::Deref;
 
 /// Encapsulates the IDL restricted float type.
diff --git a/components/script/dom/blob.rs b/components/script/dom/blob.rs
index 9c23b8f6da0..de7a7b8c35a 100644
--- a/components/script/dom/blob.rs
+++ b/components/script/dom/blob.rs
@@ -12,7 +12,7 @@ use dom::bindings::reflector::{Reflectable, Reflector, reflect_dom_object};
 use dom::bindings::trace::JSTraceable;
 use encoding::all::UTF_8;
 use encoding::types::{EncoderTrap, Encoding};
-use num::ToPrimitive;
+use num_traits::ToPrimitive;
 use std::ascii::AsciiExt;
 use std::borrow::ToOwned;
 use std::cell::Cell;
diff --git a/components/script/dom/canvasrenderingcontext2d.rs b/components/script/dom/canvasrenderingcontext2d.rs
index 492b98f0edf..a0c4ee9d021 100644
--- a/components/script/dom/canvasrenderingcontext2d.rs
+++ b/components/script/dom/canvasrenderingcontext2d.rs
@@ -39,7 +39,7 @@ use euclid::size::Size2D;
 use ipc_channel::ipc::{self, IpcSender};
 use net_traits::image::base::PixelFormat;
 use net_traits::image_cache_thread::ImageResponse;
-use num::{Float, ToPrimitive};
+use num_traits::{Float, ToPrimitive};
 use script_traits::ScriptMsg as ConstellationMsg;
 use std::cell::Cell;
 use std::str::FromStr;
diff --git a/components/script/dom/document.rs b/components/script/dom/document.rs
index d87e80b7acc..12eab0cf4e2 100644
--- a/components/script/dom/document.rs
+++ b/components/script/dom/document.rs
@@ -93,7 +93,7 @@ use net_traits::ControlMsg::{GetCookiesForUrl, SetCookiesForUrl};
 use net_traits::CookieSource::NonHTTP;
 use net_traits::response::HttpsState;
 use net_traits::{AsyncResponseTarget, PendingAsyncLoad};
-use num::ToPrimitive;
+use num_traits::ToPrimitive;
 use origin::Origin;
 use script_runtime::ScriptChan;
 use script_thread::{MainThreadScriptChan, MainThreadScriptMsg, Runnable};
diff --git a/components/script/dom/htmlanchorelement.rs b/components/script/dom/htmlanchorelement.rs
index 16f47315b76..c66617bfb3a 100644
--- a/components/script/dom/htmlanchorelement.rs
+++ b/components/script/dom/htmlanchorelement.rs
@@ -25,7 +25,7 @@ use dom::mouseevent::MouseEvent;
 use dom::node::{Node, document_from_node, window_from_node};
 use dom::urlhelper::UrlHelper;
 use dom::virtualmethods::VirtualMethods;
-use num::ToPrimitive;
+use num_traits::ToPrimitive;
 use std::default::Default;
 use string_cache::Atom;
 use url::{Url, UrlParser};
diff --git a/components/script/dom/window.rs b/components/script/dom/window.rs
index 8a3affefe06..9a8d97c23ef 100644
--- a/components/script/dom/window.rs
+++ b/components/script/dom/window.rs
@@ -48,7 +48,7 @@ use msg::webdriver_msg::{WebDriverJSError, WebDriverJSResult};
 use net_traits::ResourceThread;
 use net_traits::image_cache_thread::{ImageCacheChan, ImageCacheThread};
 use net_traits::storage_thread::{StorageThread, StorageType};
-use num::traits::ToPrimitive;
+use num_traits::ToPrimitive;
 use page::Page;
 use profile_traits::mem;
 use reporter::CSSErrorReporter;
diff --git a/components/script/lib.rs b/components/script/lib.rs
index e525a62b70d..2827238dcef 100644
--- a/components/script/lib.rs
+++ b/components/script/lib.rs
@@ -53,7 +53,7 @@ extern crate libc;
 extern crate log;
 extern crate msg;
 extern crate net_traits;
-extern crate num;
+extern crate num_traits;
 extern crate offscreen_gl_context;
 extern crate phf;
 #[macro_use]
diff --git a/components/script/timers.rs b/components/script/timers.rs
index 7816106c9d7..473b2fc030c 100644
--- a/components/script/timers.rs
+++ b/components/script/timers.rs
@@ -15,7 +15,7 @@ use heapsize::HeapSizeOf;
 use ipc_channel::ipc::IpcSender;
 use js::jsapi::{HandleValue, Heap, RootedValue};
 use js::jsval::{JSVal, UndefinedValue};
-use num::traits::Saturating;
+use num_traits::Saturating;
 use script_traits::{MsDuration, precise_time_ms};
 use script_traits::{TimerEvent, TimerEventId, TimerEventRequest, TimerSource};
 use std::cell::Cell;
diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index 33a3270c05c..2720e51b000 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -1773,7 +1773,7 @@ dependencies = [
  "log 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "net_traits 0.0.1",
- "num 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "offscreen_gl_context 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf 0.7.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf_macros 0.7.13 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/ports/cef/Cargo.lock b/ports/cef/Cargo.lock
index 309ef9907b3..9a924ee6803 100644
--- a/ports/cef/Cargo.lock
+++ b/ports/cef/Cargo.lock
@@ -1649,7 +1649,7 @@ dependencies = [
  "log 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "net_traits 0.0.1",
- "num 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "offscreen_gl_context 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf 0.7.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf_macros 0.7.13 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/ports/gonk/Cargo.lock b/ports/gonk/Cargo.lock
index 79ed831c57e..6a76a679eb0 100644
--- a/ports/gonk/Cargo.lock
+++ b/ports/gonk/Cargo.lock
@@ -1631,7 +1631,7 @@ dependencies = [
  "log 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "net_traits 0.0.1",
- "num 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "offscreen_gl_context 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf 0.7.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "phf_macros 0.7.13 (registry+https://github.com/rust-lang/crates.io-index)",