diff --git a/Cargo.lock b/Cargo.lock
index 4248c5ef2e8..879af6c98a2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -57,7 +57,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "app_units"
-version = "0.5.2"
+version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "heapsize 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1052,7 +1052,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "gfx"
 version = "0.0.1"
 dependencies = [
- "app_units 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "app_units 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1451,7 +1451,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "layout"
 version = "0.0.1"
 dependencies = [
- "app_units 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "app_units 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "atomic_refcell 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "canvas_traits 0.0.1",
@@ -1501,7 +1501,7 @@ dependencies = [
 name = "layout_thread"
 version = "0.0.1"
 dependencies = [
- "app_units 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "app_units 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "atomic_refcell 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.15.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "fnv 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2461,7 +2461,7 @@ name = "script"
 version = "0.0.1"
 dependencies = [
  "angle 0.5.0 (git+https://github.com/servo/angle?branch=servo)",
- "app_units 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "app_units 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "audio-video-metadata 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "base64 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2541,7 +2541,7 @@ dependencies = [
 name = "script_layout_interface"
 version = "0.0.1"
 dependencies = [
- "app_units 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "app_units 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "atomic_refcell 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "canvas_traits 0.0.1",
  "cssparser 0.19.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2851,7 +2851,7 @@ dependencies = [
 name = "servo_geometry"
 version = "0.0.1"
 dependencies = [
- "app_units 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "app_units 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.15.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "heapsize 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -3007,7 +3007,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 name = "style"
 version = "0.0.1"
 dependencies = [
- "app_units 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "app_units 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "arraydeque 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "arrayvec 0.3.23 (registry+https://github.com/rust-lang/crates.io-index)",
  "atomic_refcell 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3069,7 +3069,7 @@ dependencies = [
 name = "style_tests"
 version = "0.0.1"
 dependencies = [
- "app_units 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "app_units 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cssparser 0.19.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.15.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3091,7 +3091,7 @@ dependencies = [
 name = "style_traits"
 version = "0.0.1"
 dependencies = [
- "app_units 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "app_units 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "cssparser 0.19.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "euclid 0.15.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3483,7 +3483,7 @@ name = "webrender"
 version = "0.48.1"
 source = "git+https://github.com/servo/webrender#48808d144c83bbcc06524cb32c945144b44b51a5"
 dependencies = [
- "app_units 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "app_units 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "bincode 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "bit-set 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3512,7 +3512,7 @@ name = "webrender_api"
 version = "0.48.1"
 source = "git+https://github.com/servo/webrender#48808d144c83bbcc06524cb32c945144b44b51a5"
 dependencies = [
- "app_units 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "app_units 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "bincode 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "byteorder 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "core-foundation 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3651,7 +3651,7 @@ dependencies = [
 "checksum angle 0.5.0 (git+https://github.com/servo/angle?branch=servo)" = "<none>"
 "checksum ansi_term 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "23ac7c30002a5accbf7e8987d0632fa6de155b7c3d39d0067317a391e00a2ef6"
 "checksum antidote 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "34fde25430d87a9388dadbe6e34d7f72a462c8b43ac8d309b42b0a8505d7e2a5"
-"checksum app_units 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "813ec2cdca52df57e839c4f4083b47cd7b2c2ae5409cee26f50a020144a8e631"
+"checksum app_units 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)" = "7ff4f3fe57393a150b39b026b6f6f4b9a6c4f49b52d0a4e2d61d08d926358438"
 "checksum arraydeque 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "96e774cadb24c2245225280c6799793f9802b918a58a79615e9490607489a717"
 "checksum arrayvec 0.3.23 (registry+https://github.com/rust-lang/crates.io-index)" = "699e63a93b79d717e8c3b5eb1b28b7780d0d6d9e59a72eb769291c83b0c8dc67"
 "checksum aster 0.41.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4ccfdf7355d9db158df68f976ed030ab0f6578af811f5a7bb6dcf221ec24e0e0"
diff --git a/components/style/Cargo.toml b/components/style/Cargo.toml
index 5b05a42299c..e382a623ce5 100644
--- a/components/style/Cargo.toml
+++ b/components/style/Cargo.toml
@@ -29,7 +29,7 @@ servo = ["serde", "heapsize", "heapsize_derive",
 gecko_debug = ["nsstring_vendor/gecko_debug"]
 
 [dependencies]
-app_units = "0.5.2"
+app_units = "0.5.3"
 arrayvec = "0.3.20"
 arraydeque = "0.2.3"
 atomic_refcell = "0.1"