diff --git a/Cargo.lock b/Cargo.lock
index 0d417c0240..84d49ad3f5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -21,7 +21,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "arrayvec"
-version = "0.4.9"
+version = "0.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -190,7 +190,7 @@ name = "crossbeam-epoch"
 version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "arrayvec 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "arrayvec 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -204,7 +204,7 @@ name = "crossbeam-epoch"
 version = "0.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "arrayvec 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "arrayvec 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-utils 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -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",
@@ -736,7 +736,7 @@ dependencies = [
 name = "ra_hir"
 version = "0.1.0"
 dependencies = [
- "arrayvec 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "arrayvec 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "flexi_logger 0.10.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "id-arena 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -789,9 +789,9 @@ dependencies = [
 name = "ra_syntax"
 version = "0.1.0"
 dependencies = [
- "arrayvec 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "arrayvec 0.4.10 (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)",
 ]
@@ -1515,7 +1515,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum aho-corasick 0.6.9 (registry+https://github.com/rust-lang/crates.io-index)" = "1e9a933f4e58658d7b12defcf96dc5c720f20832deebe3e0a19efd3b6aaeeb9e"
 "checksum ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
 "checksum arrayref 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)" = "0d382e583f07208808f6b1249e60848879ba3543f57c32277bf52d69c2f0f0ee"
-"checksum arrayvec 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)" = "d18513977c2d8261c448511c5c53dc66b26dfccbc3d4446672dea1e71a7d8a26"
+"checksum arrayvec 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)" = "92c7fb76bc8826a8b33b4ee5bb07a247a81e76764ab4d55e8f73e3a4d8808c71"
 "checksum atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "9a7d5b8723950951411ee34d271d99dddcc2035a16ab25310ea2c8cfd4369652"
 "checksum autocfg 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4e5f34df7a019573fb8bdc7e24a2bfebe51a2a1d6bfdbaeccedb3c41fc574727"
 "checksum backtrace 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)" = "b5b493b66e03090ebc4343eb02f94ff944e0cbc9ac6571491d170ba026741eb5"
@@ -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 f39fe4af66..a97d2308f2 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_hir/Cargo.toml b/crates/ra_hir/Cargo.toml
index 594176337d..1350d51daf 100644
--- a/crates/ra_hir/Cargo.toml
+++ b/crates/ra_hir/Cargo.toml
@@ -5,7 +5,7 @@ version = "0.1.0"
 authors = ["Aleksey Kladov <aleksey.kladov@gmail.com>"]
 
 [dependencies]
-arrayvec = "0.4.9"
+arrayvec = "0.4.10"
 log = "0.4.5"
 relative-path = "0.4.0"
 salsa = "0.8.0"
diff --git a/crates/ra_syntax/Cargo.toml b/crates/ra_syntax/Cargo.toml
index 8c9a7e238b..0c92b84071 100644
--- a/crates/ra_syntax/Cargo.toml
+++ b/crates/ra_syntax/Cargo.toml
@@ -8,9 +8,9 @@ description = "Comment and whitespace preserving parser for the Rust langauge"
 repository = "https://github.com/rust-analyzer/rust-analyzer"
 
 [dependencies]
-arrayvec = "0.4.7"
+arrayvec = "0.4.10"
 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 8c8fcd7ae7..02727993ea 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 41b19c5c69..4795b13873 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"