diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index 3c7d673911a..ed74bf61ba8 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -2919,7 +2919,7 @@ dependencies = [
 
 [[package]]
 name = "webdriver"
-version = "0.14.0"
+version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cookie 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2949,7 +2949,7 @@ dependencies = [
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "webdriver 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "webdriver 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3336,7 +3336,7 @@ dependencies = [
 "checksum wayland-scanner 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)" = "5a1869370d6bafcbabae8724511d803f4e209a70e94ad94a4249269534364f66"
 "checksum wayland-sys 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)" = "9633f7fe5de56544215f82eaf1b76bf1b584becf7f08b58cbef4c2c7d10e803a"
 "checksum wayland-window 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "309b69d3a863c9c21422d889fb7d98cf02f8a2ca054960a49243ce5b67ad884c"
-"checksum webdriver 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee2d66e90672022ced375134329c57be4db228b19b120b97b744a469c381be06"
+"checksum webdriver 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6d43d9121a4d0313abca5fb621f094791300176cac493ce74ad2cc188bddac29"
 "checksum webrender 0.8.1 (git+https://github.com/servo/webrender)" = "<none>"
 "checksum webrender_traits 0.8.1 (git+https://github.com/servo/webrender)" = "<none>"
 "checksum websocket 0.17.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bb4a1a6ea5ed0367f32eb3d94dcc58859ef4294b5f75ba983dbf56ac314af45d"
diff --git a/components/webdriver_server/Cargo.toml b/components/webdriver_server/Cargo.toml
index b0394b32f90..8b34b97da70 100644
--- a/components/webdriver_server/Cargo.toml
+++ b/components/webdriver_server/Cargo.toml
@@ -10,6 +10,7 @@ name = "webdriver_server"
 path = "lib.rs"
 
 [dependencies]
+cookie = {version = "0.2.5", features = ["serialize-rustc"]}
 euclid = "0.10.1"
 hyper = "0.9.9"
 image = "0.10"
@@ -24,5 +25,4 @@ script_traits = {path = "../script_traits"}
 url = {version = "1.2", features = ["heap_size"]}
 util = {path = "../util"}
 uuid = { version = "0.3.1", features = ["v4"] }
-webdriver = "0.14"
-cookie = {version = "0.2.5", features = ["serialize-rustc"]}
+webdriver = "0.15"
diff --git a/ports/cef/Cargo.lock b/ports/cef/Cargo.lock
index 4d031cb17b8..52c7e2d3fc6 100644
--- a/ports/cef/Cargo.lock
+++ b/ports/cef/Cargo.lock
@@ -2733,7 +2733,7 @@ dependencies = [
 
 [[package]]
 name = "webdriver"
-version = "0.14.0"
+version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cookie 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2763,7 +2763,7 @@ dependencies = [
  "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "util 0.0.1",
  "uuid 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "webdriver 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "webdriver 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -3139,7 +3139,7 @@ dependencies = [
 "checksum wayland-scanner 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)" = "5a1869370d6bafcbabae8724511d803f4e209a70e94ad94a4249269534364f66"
 "checksum wayland-sys 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)" = "9633f7fe5de56544215f82eaf1b76bf1b584becf7f08b58cbef4c2c7d10e803a"
 "checksum wayland-window 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "309b69d3a863c9c21422d889fb7d98cf02f8a2ca054960a49243ce5b67ad884c"
-"checksum webdriver 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee2d66e90672022ced375134329c57be4db228b19b120b97b744a469c381be06"
+"checksum webdriver 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "6d43d9121a4d0313abca5fb621f094791300176cac493ce74ad2cc188bddac29"
 "checksum webrender 0.8.1 (git+https://github.com/servo/webrender)" = "<none>"
 "checksum webrender_traits 0.8.1 (git+https://github.com/servo/webrender)" = "<none>"
 "checksum websocket 0.17.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bb4a1a6ea5ed0367f32eb3d94dcc58859ef4294b5f75ba983dbf56ac314af45d"