diff --git a/Cargo.lock b/Cargo.lock
index 0d417c02400..6bcaacac6d5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -412,7 +412,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "itertools"
-version = "0.7.11"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -722,7 +722,7 @@ dependencies = [
 name = "ra_editor"
 version = "0.1.0"
 dependencies = [
- "itertools 0.7.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "join_to_string 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "proptest 0.8.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "ra_syntax 0.1.0",
@@ -791,7 +791,7 @@ version = "0.1.0"
 dependencies = [
  "arrayvec 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "drop_bomb 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.7.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "ra_text_edit 0.1.0",
  "rowan 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1265,7 +1265,7 @@ name = "test_utils"
 version = "0.1.0"
 dependencies = [
  "difference 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.7.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.33 (registry+https://github.com/rust-lang/crates.io-index)",
  "text_unit 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1327,7 +1327,7 @@ version = "0.1.0"
 dependencies = [
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "failure 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.7.11 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "teraron 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "walkdir 2.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1563,7 +1563,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum idna 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "38f09e0f0b1fb55fdee1f17470ad800da77af5186a1a76c026b679358b7e844e"
 "checksum im 12.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ae9c7f9bb8aee47fc16d535a705f7867a9fc83bb822e5e1043bb98e77ffeed3c"
 "checksum indexmap 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7e81a7c05f79578dbc15793d8b619db9ba32b4577003ef3af1a91c416798c58d"
-"checksum itertools 0.7.11 (registry+https://github.com/rust-lang/crates.io-index)" = "0d47946d458e94a1b7bcabbf6521ea7c037062c81f534615abcad76e84d4970d"
+"checksum itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5b8467d9c1cebe26feb08c640139247fac215782d35371ade9a2136ed6085358"
 "checksum itoa 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "1306f3464951f30e30d12373d31c79fbd52d236e5e896fd92f96ec7babbbe60b"
 "checksum join_to_string 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7bddc885f3fd69dd4b5d747c2efe6dd2c36d795ea9938281ed50910e32c95e31"
 "checksum languageserver-types 0.53.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a0be4f8f783832a308975035043c0e8ad18e11c3f3d395aa6f1a9f3a30b8e654"
diff --git a/crates/ra_editor/Cargo.toml b/crates/ra_editor/Cargo.toml
index f39fe4af66c..a97d2308f2b 100644
--- a/crates/ra_editor/Cargo.toml
+++ b/crates/ra_editor/Cargo.toml
@@ -6,7 +6,7 @@ authors = ["Aleksey Kladov <aleksey.kladov@gmail.com>"]
 publish = false
 
 [dependencies]
-itertools = "0.7.8"
+itertools = "0.8.0"
 superslice = "0.1.0"
 join_to_string = "0.1.1"
 rustc-hash = "1.0"
diff --git a/crates/ra_syntax/Cargo.toml b/crates/ra_syntax/Cargo.toml
index 8c9a7e238b6..8e64e466d41 100644
--- a/crates/ra_syntax/Cargo.toml
+++ b/crates/ra_syntax/Cargo.toml
@@ -10,7 +10,7 @@ repository = "https://github.com/rust-analyzer/rust-analyzer"
 [dependencies]
 arrayvec = "0.4.7"
 unicode-xid = "0.1.0"
-itertools = "0.7.8"
+itertools = "0.8.0"
 drop_bomb = "0.1.4"
 parking_lot = "0.6.0"
 rowan = "0.1.2"
diff --git a/crates/test_utils/Cargo.toml b/crates/test_utils/Cargo.toml
index 8c8fcd7ae72..02727993ea5 100644
--- a/crates/test_utils/Cargo.toml
+++ b/crates/test_utils/Cargo.toml
@@ -6,6 +6,6 @@ authors = ["Aleksey Kladov <aleksey.kladov@gmail.com>"]
 
 [dependencies]
 difference = "2.0.0"
-itertools = "0.7.8"
+itertools = "0.8.0"
 text_unit = "0.1.2"
 serde_json = "1.0.24"
diff --git a/crates/tools/Cargo.toml b/crates/tools/Cargo.toml
index 41b19c5c69c..4795b138737 100644
--- a/crates/tools/Cargo.toml
+++ b/crates/tools/Cargo.toml
@@ -8,6 +8,6 @@ publish = false
 [dependencies]
 teraron = "0.0.1"
 walkdir = "2.1.3"
-itertools = "0.7.8"
+itertools = "0.8.0"
 clap = "2.32.0"
 failure = "0.1.1"