diff --git a/Cargo.lock b/Cargo.lock
index b1e23405138c..35f998defa3d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -512,7 +512,7 @@ dependencies = [
  "gleam 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "image 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "keyboard-types 0.4.2-servo (registry+https://github.com/rust-lang/crates.io-index)",
+ "keyboard-types 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
@@ -549,7 +549,7 @@ dependencies = [
  "gfx_traits 0.0.1",
  "http 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "keyboard-types 0.4.2-servo (registry+https://github.com/rust-lang/crates.io-index)",
+ "keyboard-types 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "layout_traits 0.0.1",
  "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "metrics 0.0.1",
@@ -943,7 +943,7 @@ name = "embedder_traits"
 version = "0.0.1"
 dependencies = [
  "ipc-channel 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "keyboard-types 0.4.2-servo (registry+https://github.com/rust-lang/crates.io-index)",
+ "keyboard-types 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
@@ -1898,11 +1898,12 @@ dependencies = [
 
 [[package]]
 name = "keyboard-types"
-version = "0.4.2-servo"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-segmentation 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2210,7 +2211,7 @@ dependencies = [
  "hashglobe 0.1.0",
  "hyper 0.12.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper_serde 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "keyboard-types 0.4.2-servo (registry+https://github.com/rust-lang/crates.io-index)",
+ "keyboard-types 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "mozjs 0.9.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "selectors 0.20.0",
  "serde 1.0.80 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3200,7 +3201,7 @@ dependencies = [
  "ipc-channel 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "itertools 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "jstraceable_derive 0.0.1",
- "keyboard-types 0.4.2-servo (registry+https://github.com/rust-lang/crates.io-index)",
+ "keyboard-types 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3304,7 +3305,7 @@ name = "script_tests"
 version = "0.0.1"
 dependencies = [
  "euclid 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "keyboard-types 0.4.2-servo (registry+https://github.com/rust-lang/crates.io-index)",
+ "keyboard-types 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "script 0.0.1",
  "servo_url 0.0.1",
 ]
@@ -3324,7 +3325,7 @@ dependencies = [
  "hyper 0.12.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper_serde 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "keyboard-types 0.4.2-servo (registry+https://github.com/rust-lang/crates.io-index)",
+ "keyboard-types 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "malloc_size_of 0.0.1",
  "malloc_size_of_derive 0.0.1",
@@ -3408,7 +3409,7 @@ dependencies = [
  "gdi32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "gleam 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "glutin 0.18.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "keyboard-types 0.4.2-servo (registry+https://github.com/rust-lang/crates.io-index)",
+ "keyboard-types 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "libservo 0.0.1",
  "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -4457,7 +4458,7 @@ dependencies = [
  "hyper 0.12.12 (registry+https://github.com/rust-lang/crates.io-index)",
  "image 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "keyboard-types 0.4.2-servo (registry+https://github.com/rust-lang/crates.io-index)",
+ "keyboard-types 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "msg 0.0.1",
  "net_traits 0.0.1",
@@ -4902,7 +4903,7 @@ dependencies = [
 "checksum jni-sys 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8eaf4bc02d17cbdd7ff4c7438cafcdf7fb9a4613313ad11b4f8fefe7d3fa0130"
 "checksum jpeg-decoder 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)" = "0dfe27a6c0dabd772d0f9b9f8701c4ca12c4d1eebcadf2be1f6f70396f6a1434"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
-"checksum keyboard-types 0.4.2-servo (registry+https://github.com/rust-lang/crates.io-index)" = "75082c134a78e0fc2232d2f30bf3dfdea1cd28591846b85a73b4b46cd776b482"
+"checksum keyboard-types 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "823bf0e5ec01b80424a318e79a0d1375725281acf311c47543ab3413f704dc25"
 "checksum khronos_api 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d9ef23fcc4059260c5936f638c9805ebfc87cb172fa6661d130cba7f97d58f55"
 "checksum lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c8f31047daa365f19be14b47c29df4f7c3b581832407daabe6ae77397619237d"
 "checksum lazycell 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d33a48d0365c96081958cc663eef834975cb1e8d8bea3378513fc72bdbf11e50"
diff --git a/components/compositing/Cargo.toml b/components/compositing/Cargo.toml
index ed991671c9f6..54b665ea0f16 100644
--- a/components/compositing/Cargo.toml
+++ b/components/compositing/Cargo.toml
@@ -22,7 +22,7 @@ gleam = {version = "0.6", optional = true}
 image = "0.19"
 ipc-channel = "0.11"
 libc = "0.2"
-keyboard-types = {version = "0.4.2-servo", features = ["serde"]}
+keyboard-types = "0.4.3"
 log = "0.4"
 msg = {path = "../msg"}
 net_traits = {path = "../net_traits"}
diff --git a/components/constellation/Cargo.toml b/components/constellation/Cargo.toml
index 1e57a10e6f28..9af85bd5939a 100644
--- a/components/constellation/Cargo.toml
+++ b/components/constellation/Cargo.toml
@@ -26,7 +26,7 @@ gfx_traits = {path = "../gfx_traits"}
 http = "0.1"
 ipc-channel = "0.11"
 layout_traits = {path = "../layout_traits"}
-keyboard-types = {version = "0.4.2-servo", features = ["serde"]}
+keyboard-types = "0.4.3"
 log = "0.4"
 metrics = {path = "../metrics"}
 msg = {path = "../msg"}
diff --git a/components/embedder_traits/Cargo.toml b/components/embedder_traits/Cargo.toml
index 68f2917e2c2d..6d9fef7f8e06 100644
--- a/components/embedder_traits/Cargo.toml
+++ b/components/embedder_traits/Cargo.toml
@@ -12,7 +12,7 @@ path = "lib.rs"
 
 [dependencies]
 ipc-channel = "0.11"
-keyboard-types = {version = "0.4.2-servo", features = ["serde"]}
+keyboard-types = "0.4.3"
 lazy_static = "1"
 log = "0.4"
 msg = {path = "../msg"}
diff --git a/components/malloc_size_of/Cargo.toml b/components/malloc_size_of/Cargo.toml
index 252185fd0c66..2b62d7180eb2 100644
--- a/components/malloc_size_of/Cargo.toml
+++ b/components/malloc_size_of/Cargo.toml
@@ -31,7 +31,7 @@ euclid = "0.19"
 hashglobe = { path = "../hashglobe" }
 hyper = { version = "0.12", optional = true }
 hyper_serde = { version = "0.9", optional = true }
-keyboard-types = {version = "0.4.2-servo", features = ["serde"], optional = true}
+keyboard-types = {version = "0.4.3", optional = true}
 mozjs = { version = "0.9.3", optional = true }
 selectors = { path = "../selectors" }
 serde = { version = "1.0.27", optional = true }
diff --git a/components/script/Cargo.toml b/components/script/Cargo.toml
index 8b5a03991414..a862caadc598 100644
--- a/components/script/Cargo.toml
+++ b/components/script/Cargo.toml
@@ -65,7 +65,7 @@ ipc-channel = "0.11"
 itertools = "0.7.6"
 js = {package = "mozjs", version = "0.9.3"}
 jstraceable_derive = {path = "../jstraceable_derive"}
-keyboard-types = {version = "0.4.2-servo", features = ["serde"]}
+keyboard-types = "0.4.3"
 lazy_static = "1"
 libc = "0.2"
 log = "0.4"
diff --git a/components/script_traits/Cargo.toml b/components/script_traits/Cargo.toml
index 3b8430e4922c..3faaeec0de9c 100644
--- a/components/script_traits/Cargo.toml
+++ b/components/script_traits/Cargo.toml
@@ -22,7 +22,7 @@ http = "0.1"
 hyper = "0.12"
 hyper_serde = "0.9"
 ipc-channel = "0.11"
-keyboard-types = {version = "0.4.2-servo", features = ["serde"]}
+keyboard-types = "0.4.3"
 libc = "0.2"
 malloc_size_of = { path = "../malloc_size_of" }
 malloc_size_of_derive = { path = "../malloc_size_of_derive" }
diff --git a/components/webdriver_server/Cargo.toml b/components/webdriver_server/Cargo.toml
index d3ccfcc05dc0..b3b2c178812d 100644
--- a/components/webdriver_server/Cargo.toml
+++ b/components/webdriver_server/Cargo.toml
@@ -17,7 +17,7 @@ euclid = "0.19"
 hyper = "0.12"
 image = "0.19"
 ipc-channel = "0.11"
-keyboard-types = {version = "0.4.2-servo", features = ["serde"]}
+keyboard-types = "0.4.3"
 log = "0.4"
 msg = {path = "../msg"}
 net_traits = {path = "../net_traits"}
diff --git a/components/webdriver_server/keys.rs b/components/webdriver_server/keys.rs
deleted file mode 100644
index 212a3b56815d..000000000000
--- a/components/webdriver_server/keys.rs
+++ /dev/null
@@ -1,106 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-use keyboard_types::{Key, KeyboardEvent};
-
-// spec: https://w3c.github.io/webdriver/#keyboard-actions
-// normalised (sic) as in british spelling
-fn get_normalised_key_value(key: char) -> Key {
-    match key {
-        '\u{E000}' => Key::Unidentified,
-        '\u{E001}' => Key::Cancel,
-        '\u{E002}' => Key::Help,
-        '\u{E003}' => Key::Backspace,
-        '\u{E004}' => Key::Tab,
-        '\u{E005}' => Key::Clear,
-        // FIXME(pyfisch): spec says "Return"
-        '\u{E006}' => Key::Enter,
-        '\u{E007}' => Key::Enter,
-        '\u{E008}' => Key::Shift,
-        '\u{E009}' => Key::Control,
-        '\u{E00A}' => Key::Alt,
-        '\u{E00B}' => Key::Pause,
-        '\u{E00C}' => Key::Escape,
-        '\u{E00D}' => Key::Character(" ".to_string()),
-        '\u{E00E}' => Key::PageUp,
-        '\u{E00F}' => Key::PageDown,
-        '\u{E010}' => Key::End,
-        '\u{E011}' => Key::Home,
-        '\u{E012}' => Key::ArrowLeft,
-        '\u{E013}' => Key::ArrowUp,
-        '\u{E014}' => Key::ArrowRight,
-        '\u{E015}' => Key::ArrowDown,
-        '\u{E016}' => Key::Insert,
-        '\u{E017}' => Key::Delete,
-        '\u{E018}' => Key::Character(";".to_string()),
-        '\u{E019}' => Key::Character("=".to_string()),
-        '\u{E01A}' => Key::Character("0".to_string()),
-        '\u{E01B}' => Key::Character("1".to_string()),
-        '\u{E01C}' => Key::Character("2".to_string()),
-        '\u{E01D}' => Key::Character("3".to_string()),
-        '\u{E01E}' => Key::Character("4".to_string()),
-        '\u{E01F}' => Key::Character("5".to_string()),
-        '\u{E020}' => Key::Character("6".to_string()),
-        '\u{E021}' => Key::Character("7".to_string()),
-        '\u{E022}' => Key::Character("8".to_string()),
-        '\u{E023}' => Key::Character("9".to_string()),
-        '\u{E024}' => Key::Character("*".to_string()),
-        '\u{E025}' => Key::Character("+".to_string()),
-        '\u{E026}' => Key::Character(",".to_string()),
-        '\u{E027}' => Key::Character("-".to_string()),
-        '\u{E028}' => Key::Character(".".to_string()),
-        '\u{E029}' => Key::Character("/".to_string()),
-        '\u{E031}' => Key::F1,
-        '\u{E032}' => Key::F2,
-        '\u{E033}' => Key::F3,
-        '\u{E034}' => Key::F4,
-        '\u{E035}' => Key::F5,
-        '\u{E036}' => Key::F6,
-        '\u{E037}' => Key::F7,
-        '\u{E038}' => Key::F8,
-        '\u{E039}' => Key::F9,
-        '\u{E03A}' => Key::F10,
-        '\u{E03B}' => Key::F11,
-        '\u{E03C}' => Key::F12,
-        '\u{E03D}' => Key::Meta,
-        '\u{E040}' => Key::ZenkakuHankaku,
-        '\u{E050}' => Key::Shift,
-        '\u{E051}' => Key::Control,
-        '\u{E052}' => Key::Alt,
-        '\u{E053}' => Key::Meta,
-        '\u{E054}' => Key::PageUp,
-        '\u{E055}' => Key::PageDown,
-        '\u{E056}' => Key::End,
-        '\u{E057}' => Key::Home,
-        '\u{E058}' => Key::ArrowLeft,
-        '\u{E059}' => Key::ArrowUp,
-        '\u{E05A}' => Key::ArrowRight,
-        '\u{E05B}' => Key::ArrowDown,
-        '\u{E05C}' => Key::Insert,
-        '\u{E05D}' => Key::Delete,
-        _ => Key::Character(key.to_string()),
-    }
-}
-
-pub fn keycodes_to_keys(key_codes: &str) -> Vec<KeyboardEvent> {
-    let mut rv = vec![];
-
-    for char_code in key_codes.chars() {
-        // TODO(pyfisch): compute code, location, modifiers according to spec
-        let key = get_normalised_key_value(char_code);
-        let mut event = KeyboardEvent {
-            state: ::keyboard_types::KeyState::Down,
-            key,
-            code: ::keyboard_types::Code::Unidentified,
-            location: ::keyboard_types::Location::Standard,
-            modifiers: ::keyboard_types::Modifiers::empty(),
-            repeat: false,
-            is_composing: false,
-        };
-        rv.push(event.clone());
-        event.state = ::keyboard_types::KeyState::Up;
-        rv.push(event);
-    }
-    rv
-}
diff --git a/components/webdriver_server/lib.rs b/components/webdriver_server/lib.rs
index 7e9de23b66ce..347c53151008 100644
--- a/components/webdriver_server/lib.rs
+++ b/components/webdriver_server/lib.rs
@@ -11,14 +11,12 @@ extern crate log;
 #[macro_use]
 extern crate serde;
 
-mod keys;
-
 use base64;
-use crate::keys::keycodes_to_keys;
 use euclid::TypedSize2D;
 use hyper::Method;
 use image::{DynamicImage, ImageFormat, RgbImage};
 use ipc_channel::ipc::{self, IpcReceiver, IpcSender};
+use keyboard_types::webdriver::{send_keys, Event as KeyEvent};
 use msg::constellation_msg::{BrowsingContextId, TopLevelBrowsingContextId, TraversalDirection};
 use net_traits::image::base::PixelFormat;
 use regex::Captures;
@@ -1038,7 +1036,14 @@ impl Handler {
             ))
         })?;
 
-        let keys = keycodes_to_keys(&keys.text);
+        // FIXME: Don't discard composition events.
+        let keys = send_keys(&keys.text)
+            .drain(..)
+            .filter_map(|event| match event {
+                KeyEvent::Keyboard(v) => Some(v),
+                _ => None,
+            })
+            .collect();
 
         // TODO: there's a race condition caused by the focus command and the
         // send keys command being two separate messages,
diff --git a/ports/servo/Cargo.toml b/ports/servo/Cargo.toml
index 35d55e2ebe73..faa4eded4d80 100644
--- a/ports/servo/Cargo.toml
+++ b/ports/servo/Cargo.toml
@@ -45,7 +45,7 @@ crossbeam-channel = "0.2"
 euclid = "0.19"
 gleam = "0.6"
 glutin = "0.18"
-keyboard-types = {version = "0.4.2-servo", features = ["serde"]}
+keyboard-types = "0.4.3"
 lazy_static = "1"
 libservo = {path = "../../components/servo"}
 log = "0.4"
diff --git a/tests/unit/script/Cargo.toml b/tests/unit/script/Cargo.toml
index a59179ce3e5b..e772e776bc57 100644
--- a/tests/unit/script/Cargo.toml
+++ b/tests/unit/script/Cargo.toml
@@ -11,6 +11,6 @@ path = "lib.rs"
 
 [dependencies]
 euclid = "0.19"
-keyboard-types = "0.4.2-servo"
+keyboard-types = "0.4.3"
 script = {path = "../../../components/script"}
 servo_url = {path = "../../../components/url"}