diff --git a/Cargo.lock b/Cargo.lock
index c30967c..630244f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -9,7 +9,7 @@ dependencies = [
  "actix-rt",
  "actix_derive",
  "bitflags",
- "bytes",
+ "bytes 0.5.6",
  "crossbeam-channel 0.4.4",
  "derive_more",
  "futures-channel",
@@ -19,7 +19,7 @@ dependencies = [
  "parking_lot",
  "pin-project",
  "smallvec",
- "tokio",
+ "tokio 0.2.22",
  "tokio-util 0.3.1",
  "trust-dns-proto 0.19.5",
  "trust-dns-resolver 0.19.5",
@@ -32,11 +32,11 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09e55f0a5c2ca15795035d90c46bd0e73a5123b72f68f12596d6ba5282051380"
 dependencies = [
  "bitflags",
- "bytes",
+ "bytes 0.5.6",
  "futures-core",
  "futures-sink",
  "log",
- "tokio",
+ "tokio 0.2.22",
  "tokio-util 0.2.0",
 ]
 
@@ -78,7 +78,7 @@ dependencies = [
  "base64 0.11.0",
  "bitflags",
  "brotli2",
- "bytes",
+ "bytes 0.5.6",
  "chrono",
  "copyless",
  "derive_more",
@@ -131,7 +131,7 @@ dependencies = [
  "futures-channel",
  "futures-util",
  "smallvec",
- "tokio",
+ "tokio 0.2.22",
 ]
 
 [[package]]
@@ -189,7 +189,7 @@ dependencies = [
  "actix-rt",
  "actix-service",
  "bitflags",
- "bytes",
+ "bytes 0.5.6",
  "either",
  "futures",
  "log",
@@ -286,7 +286,7 @@ dependencies = [
  "actix-rt",
  "actix-service",
  "base64 0.11.0",
- "bytes",
+ "bytes 0.5.6",
  "derive_more",
  "futures-core",
  "log",
@@ -378,6 +378,12 @@ version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0e4cec68f03f32e44924783795810fa50a7035d8c8ebe78580ad7e6c703fba38"
 
+[[package]]
+name = "bytes"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b700ce4376041dcd0a327fd0097c41095743c4c8af8887265942faf1100bd040"
+
 [[package]]
 name = "cc"
 version = "1.0.59"
@@ -753,7 +759,7 @@ version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "993f9e0baeed60001cf565546b0d3dbe6a6ad23f2bd31644a133c641eccf6d53"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "fnv",
  "futures-core",
  "futures-sink",
@@ -761,7 +767,7 @@ dependencies = [
  "http",
  "indexmap",
  "slab",
- "tokio",
+ "tokio 0.2.22",
  "tokio-util 0.3.1",
  "tracing",
 ]
@@ -807,7 +813,7 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "28d569972648b2c512421b5f2a405ad6ac9666547189d0c5477a3f200f3e02f9"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "fnv",
  "itoa",
 ]
@@ -818,7 +824,7 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13d5ff830006f7646652e057693569bfe0d51760c0085a071769d142a205111b"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "http",
 ]
 
@@ -834,7 +840,7 @@ version = "0.13.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3e68a8dd9716185d9e64ea473ea6ef63529252e3e27623295a0378a19665d5eb"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "futures-channel",
  "futures-core",
  "futures-util",
@@ -846,7 +852,7 @@ dependencies = [
  "pin-project",
  "socket2",
  "time",
- "tokio",
+ "tokio 0.2.22",
  "tower-service",
  "tracing",
  "want",
@@ -858,10 +864,10 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d979acc56dcb5b8dddba3917601745e877576475aa046df3226eabdecef78eed"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "hyper",
  "native-tls",
- "tokio",
+ "tokio 0.2.22",
  "tokio-tls",
 ]
 
@@ -1269,6 +1275,12 @@ version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "282adbf10f2698a7a77f8e983a74b2d18176c19a7fd32a45446139ae7b02b715"
 
+[[package]]
+name = "pin-project-lite"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc0e1f259c92177c30a4c9d177246edd0a3568b25756a977d0632cf8fa37e905"
+
 [[package]]
 name = "pin-utils"
 version = "0.1.0"
@@ -1404,7 +1416,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e9eaa17ac5d7b838b7503d118fa16ad88f440498bf9ffe5424e621f93190d61e"
 dependencies = [
  "base64 0.12.3",
- "bytes",
+ "bytes 0.5.6",
  "encoding_rs",
  "futures-core",
  "futures-util",
@@ -1420,11 +1432,11 @@ dependencies = [
  "mime_guess",
  "native-tls",
  "percent-encoding",
- "pin-project-lite",
+ "pin-project-lite 0.1.7",
  "serde",
  "serde_json",
  "serde_urlencoded",
- "tokio",
+ "tokio 0.2.22",
  "tokio-tls",
  "url",
  "wasm-bindgen",
@@ -1734,7 +1746,7 @@ version = "0.2.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5d34ca54d84bf2b5b4d7d31e901a8464f7b60ac145a284fba25ceb801f2ddccd"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "fnv",
  "futures-core",
  "iovec",
@@ -1745,12 +1757,22 @@ dependencies = [
  "mio-named-pipes",
  "mio-uds",
  "num_cpus",
- "pin-project-lite",
+ "pin-project-lite 0.1.7",
  "signal-hook-registry",
  "slab",
  "winapi 0.3.9",
 ]
 
+[[package]]
+name = "tokio"
+version = "1.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d56477f6ed99e10225f38f9f75f872f29b8b8bd8c0b946f63345bb144e9eeda"
+dependencies = [
+ "autocfg",
+ "pin-project-lite 0.2.6",
+]
+
 [[package]]
 name = "tokio-rustls"
 version = "0.12.3"
@@ -1759,7 +1781,7 @@ checksum = "3068d891551949b37681724d6b73666787cc63fa8e255c812a41d2513aff9775"
 dependencies = [
  "futures-core",
  "rustls",
- "tokio",
+ "tokio 0.2.22",
  "webpki",
 ]
 
@@ -1770,7 +1792,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a70f4fcd7b3b24fb194f837560168208f669ca8cb70d0c4b862944452396343"
 dependencies = [
  "native-tls",
- "tokio",
+ "tokio 0.2.22",
 ]
 
 [[package]]
@@ -1779,12 +1801,12 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "571da51182ec208780505a32528fc5512a8fe1443ab960b3f2f3ef093cd16930"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "futures-core",
  "futures-sink",
  "log",
- "pin-project-lite",
- "tokio",
+ "pin-project-lite 0.1.7",
+ "tokio 0.2.22",
 ]
 
 [[package]]
@@ -1793,13 +1815,27 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "be8242891f2b6cbef26a2d7e8605133c2c554cd35b3e4948ea892d6d68436499"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "futures-core",
  "futures-io",
  "futures-sink",
  "log",
- "pin-project-lite",
- "tokio",
+ "pin-project-lite 0.1.7",
+ "tokio 0.2.22",
+]
+
+[[package]]
+name = "tokio-util"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec31e5cc6b46e653cf57762f36f71d5e6386391d88a72fd6db4508f8f676fb29"
+dependencies = [
+ "bytes 1.0.1",
+ "futures-core",
+ "futures-sink",
+ "log",
+ "pin-project-lite 0.2.6",
+ "tokio 1.3.0",
 ]
 
 [[package]]
@@ -1844,7 +1880,7 @@ dependencies = [
  "rand",
  "smallvec",
  "socket2",
- "tokio",
+ "tokio 0.2.22",
  "url",
 ]
 
@@ -1864,7 +1900,7 @@ dependencies = [
  "rand",
  "smallvec",
  "thiserror",
- "tokio",
+ "tokio 0.2.22",
  "url",
 ]
 
@@ -1883,7 +1919,7 @@ dependencies = [
  "lru-cache",
  "resolv-conf",
  "smallvec",
- "tokio",
+ "tokio 0.2.22",
  "trust-dns-proto 0.18.0-alpha.2",
 ]
 
@@ -1903,7 +1939,7 @@ dependencies = [
  "resolv-conf",
  "smallvec",
  "thiserror",
- "tokio",
+ "tokio 0.2.22",
  "trust-dns-proto 0.19.5",
 ]
 
@@ -2101,7 +2137,7 @@ dependencies = [
  "actix-codec",
  "actix-rt",
  "awc",
- "bytes",
+ "bytes 0.5.6",
  "clap",
  "crossbeam-channel 0.5.0",
  "futures",
@@ -2109,8 +2145,8 @@ dependencies = [
  "rustls",
  "serde",
  "serde_json",
- "tokio",
- "tokio-util 0.3.1",
+ "tokio 0.2.22",
+ "tokio-util 0.6.4",
  "webpki-roots 0.19.0",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index ac02f8c..770024d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,7 @@ futures = "0.3.5"
 bytes = "0.5.6"
 actix-rt = "1.1.1"
 tokio = { version = "0.2.22", features = ["process"] }
-tokio-util = { version = "0.3.1", features = ["codec"] }
+tokio-util = { version = "0.6.4", features = ["codec"] }
 rustls = "0.16"
 webpki-roots = "0.19.0"
 clap = "2.33.3"