diff --git a/Cargo.lock b/Cargo.lock
index e57c33876bda..4ec6232c782c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1894,7 +1894,7 @@ dependencies = [
 
 [[package]]
 name = "itertools"
-version = "0.7.6"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "either 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3242,7 +3242,7 @@ dependencies = [
  "image 0.20.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "indexmap 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "ipc-channel 0.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "jstraceable_derive 0.0.1",
  "keyboard-types 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3870,7 +3870,7 @@ dependencies = [
  "fxhash 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashglobe 0.1.0",
  "html5ever 0.22.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "itoa 0.4.1 (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)",
@@ -4985,7 +4985,7 @@ dependencies = [
 "checksum io-surface 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5f9a33981dff54baaff80f4decb487a65d148a3c00facc97820d0f09128f74dd"
 "checksum iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dbe6e417e7d0975db6512b90796e8ce223145ac4e33c377e4a42882a0e88bb08"
 "checksum ipc-channel 0.11.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a3a369bb751cf24f18084aabb56995268ec1f68d2b69937aaf031d41690c1bef"
-"checksum itertools 0.7.6 (registry+https://github.com/rust-lang/crates.io-index)" = "b07332223953b5051bceb67e8c4700aa65291535568e1f12408c43c4a42c0394"
+"checksum itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5b8467d9c1cebe26feb08c640139247fac215782d35371ade9a2136ed6085358"
 "checksum itoa 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c069bbec61e1ca5a596166e55dfe4773ff745c3d16b700013bcaff9a6df2c682"
 "checksum jemalloc-sys 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "479294d130502fada93c7a957e8d059b632b03d6204aca37af557dee947f30a9"
 "checksum jni 0.10.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1ecfa3b81afc64d9a6539c4eece96ac9a93c551c713a313800dade8e33d7b5c1"
diff --git a/components/script/Cargo.toml b/components/script/Cargo.toml
index 071c429d5840..84e7e6f36cfb 100644
--- a/components/script/Cargo.toml
+++ b/components/script/Cargo.toml
@@ -63,7 +63,7 @@ hyper_serde = "0.9"
 image = "0.20"
 indexmap = "1.0.2"
 ipc-channel = "0.11"
-itertools = "0.7.6"
+itertools = "0.8"
 jstraceable_derive = {path = "../jstraceable_derive"}
 keyboard-types = "0.4.4"
 lazy_static = "1"
diff --git a/components/style/Cargo.toml b/components/style/Cargo.toml
index 65c1c84c87ba..9ae935c0e4df 100644
--- a/components/style/Cargo.toml
+++ b/components/style/Cargo.toml
@@ -39,7 +39,7 @@ fallible = { path = "../fallible" }
 fxhash = "0.2"
 hashglobe = { path = "../hashglobe" }
 html5ever = {version = "0.22", optional = true}
-itertools = "0.7.6"
+itertools = "0.8"
 itoa = "0.4"
 lazy_static = "1"
 log = "0.4"