diff --git a/Cargo.lock b/Cargo.lock
index e9ff267..99f41e9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -638,6 +638,14 @@ dependencies = [
  "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "either 1.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "itoa"
 version = "0.4.5"
@@ -997,7 +1005,7 @@ dependencies = [
  "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "extension-trait 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itertools 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "mime 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "once_cell 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2120,6 +2128,7 @@ dependencies = [
 "checksum input_buffer 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "19a8a95243d5a0398cae618ec29477c6e3cb631152be5c19481f80bc71559754"
 "checksum iovec 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "b2b3ea6ff95e175473f8ffe6a7eb7c00d054240321b84c57051175fe3c1e075e"
 "checksum itertools 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f56a2d0bc861f9165be4eb3442afd3c236d8a98afd426f65d92324ae1091a484"
+"checksum itertools 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "284f18f85651fe11e8a991b2adb42cb078325c996ed026d994719efcfca1d54b"
 "checksum itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "b8b7a7c0c47db5545ed3fef7468ee7bb5b74691498139e4b3f6a20685dc6dd8e"
 "checksum js-sys 0.3.35 (registry+https://github.com/rust-lang/crates.io-index)" = "7889c7c36282151f6bf465be4700359318aef36baa951462382eae49e9577cf9"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
diff --git a/Cargo.toml b/Cargo.toml
index ae7106b..8edbd4f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,7 +15,7 @@ diesel_migrations = "1.4.0"
 env_logger = { version = "0.7.1", default-features = false }
 extension-trait = "0.2.1"
 futures = "0.3.1"
-itertools = "0.8.2"
+itertools = "0.9.0"
 log = "0.4.8"
 mime = "0.3.16"
 once_cell = "1.3.1"