diff --git a/Cargo.lock b/Cargo.lock
index be37790..30e27bf 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "actix"
 version = "0.7.9"
@@ -8,7 +10,7 @@ checksum = "6c616db5fa4b0c40702fb75201c2af7f8aa8f3a2e2c1dda3b0655772aa949666"
 dependencies = [
  "actix_derive 0.3.2",
  "bitflags",
- "bytes",
+ "bytes 0.4.12",
  "crossbeam-channel",
  "failure",
  "fnv",
@@ -17,7 +19,7 @@ dependencies = [
  "log",
  "parking_lot 0.7.1",
  "smallvec 0.6.14",
- "tokio",
+ "tokio 0.1.22",
  "tokio-codec",
  "tokio-executor",
  "tokio-io",
@@ -40,7 +42,7 @@ dependencies = [
  "actix-rt",
  "actix_derive 0.4.0",
  "bitflags",
- "bytes",
+ "bytes 0.4.12",
  "crossbeam-channel",
  "derive_more 0.14.1",
  "futures",
@@ -63,20 +65,36 @@ version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9f2c11af4b06dc935d8e1b1491dad56bfb32febc49096a91e773f8535c176453"
 dependencies = [
- "bytes",
+ "bytes 0.4.12",
  "futures",
  "log",
  "tokio-codec",
  "tokio-io",
 ]
 
+[[package]]
+name = "actix-codec"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78d1833b3838dbe990df0f1f87baf640cf6146e898166afe401839d1b001e570"
+dependencies = [
+ "bitflags",
+ "bytes 0.5.6",
+ "futures-core",
+ "futures-sink",
+ "log",
+ "pin-project",
+ "tokio 0.2.25",
+ "tokio-util",
+]
+
 [[package]]
 name = "actix-connect"
 version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9fade9bd4bb46bacde89f1e726c7a3dd230536092712f5d94d77ca57c087fca0"
 dependencies = [
- "actix-codec",
+ "actix-codec 0.1.2",
  "actix-rt",
  "actix-service",
  "actix-utils",
@@ -100,7 +118,7 @@ dependencies = [
  "actix-service",
  "actix-web",
  "bitflags",
- "bytes",
+ "bytes 0.4.12",
  "derive_more 0.15.0",
  "futures",
  "log",
@@ -116,7 +134,7 @@ version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fcb50f77cd28240d344fd54afd205bae8760a3b0ad448b1716a2aa31e24db139"
 dependencies = [
- "actix-codec",
+ "actix-codec 0.1.2",
  "actix-connect",
  "actix-server-config",
  "actix-service",
@@ -125,7 +143,7 @@ dependencies = [
  "base64 0.10.1",
  "bitflags",
  "brotli2",
- "bytes",
+ "bytes 0.4.12",
  "chrono",
  "copyless",
  "derive_more 0.15.0",
@@ -166,7 +184,7 @@ checksum = "d91f0604a1bf3e628b4c3f516f07280f33a33cece27df514227f5ec30925bb55"
 dependencies = [
  "actix-service",
  "actix-web",
- "bytes",
+ "bytes 0.4.12",
  "derive_more 0.15.0",
  "futures",
  "httparse",
@@ -183,14 +201,14 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8bebfbe6629e0131730746718c9e032b58f02c6ce06ed7c982b9fef6c8545acd"
 dependencies = [
  "actix 0.7.9",
- "bytes",
+ "bytes 0.4.12",
  "futures",
  "log",
  "mio",
  "net2",
  "num_cpus",
  "slab",
- "tokio",
+ "tokio 0.1.22",
  "tokio-codec",
  "tokio-current-thread",
  "tokio-io",
@@ -207,7 +225,7 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "23224bb527e204261d0291102cb9b52713084def67d94f7874923baefe04ccf7"
 dependencies = [
- "bytes",
+ "bytes 0.4.12",
  "http",
  "log",
  "regex",
@@ -310,9 +328,9 @@ version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "908c3109948f5c37a8b57fd343a37dcad5bb1d90bfd06300ac96b17bbe017b95"
 dependencies = [
- "actix-codec",
+ "actix-codec 0.1.2",
  "actix-service",
- "bytes",
+ "bytes 0.4.12",
  "either",
  "futures",
  "log",
@@ -326,7 +344,7 @@ version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "af3a1b967cdbacb903c4b9ae71257a7f098d881b25eb483d0c468b7dac579b03"
 dependencies = [
- "actix-codec",
+ "actix-codec 0.1.2",
  "actix-http",
  "actix-router",
  "actix-rt",
@@ -338,7 +356,7 @@ dependencies = [
  "actix-utils",
  "actix-web-codegen",
  "awc",
- "bytes",
+ "bytes 0.4.12",
  "derive_more 0.15.0",
  "encoding_rs",
  "futures",
@@ -362,10 +380,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42ebee30be1864aa8dfccea853468516ae4c82303c73df96563728284e246f3b"
 dependencies = [
  "actix 0.8.3",
- "actix-codec",
+ "actix-codec 0.1.2",
  "actix-http",
  "actix-web",
- "bytes",
+ "bytes 0.4.12",
  "futures",
 ]
 
@@ -505,11 +523,11 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5e995283278dd3bf0449e7534e77184adb1570c0de8b6a50bf7c9d01ad8db8c4"
 dependencies = [
- "actix-codec",
+ "actix-codec 0.1.2",
  "actix-http",
  "actix-service",
  "base64 0.10.1",
- "bytes",
+ "bytes 0.4.12",
  "derive_more 0.15.0",
  "futures",
  "log",
@@ -605,6 +623,12 @@ dependencies = [
  "iovec",
 ]
 
+[[package]]
+name = "bytes"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0e4cec68f03f32e44924783795810fa50a7035d8c8ebe78580ad7e6c703fba38"
+
 [[package]]
 name = "cc"
 version = "1.0.67"
@@ -926,7 +950,7 @@ name = "flat-manager"
 version = "0.3.7"
 dependencies = [
  "actix 0.8.3",
- "actix-codec",
+ "actix-codec 0.3.0",
  "actix-files",
  "actix-http",
  "actix-multipart",
@@ -939,7 +963,7 @@ dependencies = [
  "awc",
  "base64 0.13.0",
  "byteorder",
- "bytes",
+ "bytes 0.4.12",
  "chrono",
  "diesel",
  "diesel_migrations",
@@ -963,7 +987,7 @@ dependencies = [
  "serde_json",
  "tempfile",
  "time",
- "tokio",
+ "tokio 0.1.22",
  "tokio-process",
  "tokio-signal",
  "walkdir",
@@ -1026,6 +1050,12 @@ version = "0.1.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a471a38ef8ed83cd6e40aa59c1ffe17db6855c18e3604d9c4ed8c08ebc28678"
 
+[[package]]
+name = "futures-core"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c09fd04b7e4073ac7156a9539b57a484a8ea920f79c7c675d05d289ab6110d3"
+
 [[package]]
 name = "futures-cpupool"
 version = "0.1.8"
@@ -1042,7 +1072,7 @@ version = "0.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b9f2aeb603383051bab2898cb253a0efed9b590582d0b7baaa0b25de2a536d5"
 dependencies = [
- "bytes",
+ "bytes 0.4.12",
  "futures",
  "futures-cpupool",
 ]
@@ -1058,6 +1088,12 @@ dependencies = [
  "tokio-executor",
 ]
 
+[[package]]
+name = "futures-sink"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21163e139fa306126e6eedaf49ecdb4588f939600f0b1e770f4205ee4b7fa868"
+
 [[package]]
 name = "getrandom"
 version = "0.1.16"
@@ -1093,7 +1129,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a5b34c246847f938a410a03c5458c7fee2274436675e76d8b903c08efc29c462"
 dependencies = [
  "byteorder",
- "bytes",
+ "bytes 0.4.12",
  "fnv",
  "futures",
  "http",
@@ -1158,7 +1194,7 @@ version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d6ccf5ede3a895d8856620237b2f02972c1bbc78d2965ad7fe8838d4a0ed41f0"
 dependencies = [
- "bytes",
+ "bytes 0.4.12",
  "fnv",
  "itoa",
 ]
@@ -1528,7 +1564,7 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5fc9c36a235da74d4686ebaefe0eeaa3c4460afa95e3a3d95dfcfc9f1e29cd0"
 dependencies = [
- "bytes",
+ "bytes 0.4.12",
  "failure",
  "futures",
  "log",
@@ -1743,6 +1779,32 @@ version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
+[[package]]
+name = "pin-project"
+version = "0.4.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9615c18d31137579e9ff063499264ddc1278e7b1982757ebc111028c4d1dc909"
+dependencies = [
+ "pin-project-internal",
+]
+
+[[package]]
+name = "pin-project-internal"
+version = "0.4.29"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "044964427019eed9d49d9d5bbce6047ef18f37100ea400912a9fa4a3523ab12a"
+dependencies = [
+ "proc-macro2 1.0.24",
+ "quote 1.0.9",
+ "syn 1.0.60",
+]
+
+[[package]]
+name = "pin-project-lite"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "257b64915a082f7811703966789728173279bdebb956b143dbcd23f6f970a777"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.10"
@@ -2278,7 +2340,7 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d24114bfcceb867ca7f71a0d3fe45d45619ec47a6fbfa98cb14e14250bfa5d6d"
 dependencies = [
- "bytes",
+ "bytes 0.4.12",
 ]
 
 [[package]]
@@ -2397,7 +2459,7 @@ version = "0.1.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5a09c0b5bb588872ab2f09afa13ee6e9dac11e10a0ec9e8e3ba39a5a5d530af6"
 dependencies = [
- "bytes",
+ "bytes 0.4.12",
  "futures",
  "mio",
  "num_cpus",
@@ -2415,13 +2477,24 @@ dependencies = [
  "tokio-uds",
 ]
 
+[[package]]
+name = "tokio"
+version = "0.2.25"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6703a273949a90131b290be1fe7b039d0fc884aa1935860dfcbe056f28cd8092"
+dependencies = [
+ "bytes 0.5.6",
+ "futures-core",
+ "pin-project-lite",
+]
+
 [[package]]
 name = "tokio-codec"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "25b2998660ba0e70d18684de5d06b70b70a3a747469af9dea7618cc59e75976b"
 dependencies = [
- "bytes",
+ "bytes 0.4.12",
  "futures",
  "tokio-io",
 ]
@@ -2463,7 +2536,7 @@ version = "0.1.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "57fc868aae093479e3131e3d165c93b1c7474109d13c90ec0dda2a1bbfff0674"
 dependencies = [
- "bytes",
+ "bytes 0.4.12",
  "futures",
  "log",
 ]
@@ -2539,7 +2612,7 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "98df18ed66e3b72e742f185882a9e201892407957e45fbff8da17ae7a7c51f72"
 dependencies = [
- "bytes",
+ "bytes 0.4.12",
  "futures",
  "iovec",
  "mio",
@@ -2582,7 +2655,7 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e2a0b10e610b39c38b031a2fcab08e4b82f16ece36504988dcbd81dbba650d82"
 dependencies = [
- "bytes",
+ "bytes 0.4.12",
  "futures",
  "log",
  "mio",
@@ -2597,7 +2670,7 @@ version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab57a4ac4111c8c9dbcf70779f6fc8bc35ae4b2454809febac840ad19bd7e4e0"
 dependencies = [
- "bytes",
+ "bytes 0.4.12",
  "futures",
  "iovec",
  "libc",
@@ -2609,6 +2682,20 @@ dependencies = [
  "tokio-reactor",
 ]
 
+[[package]]
+name = "tokio-util"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be8242891f2b6cbef26a2d7e8605133c2c554cd35b3e4948ea892d6d68436499"
+dependencies = [
+ "bytes 0.5.6",
+ "futures-core",
+ "futures-sink",
+ "log",
+ "pin-project-lite",
+ "tokio 0.2.25",
+]
+
 [[package]]
 name = "toml"
 version = "0.4.10"
@@ -2715,7 +2802,7 @@ dependencies = [
  "lru-cache",
  "resolv-conf",
  "smallvec 0.6.14",
- "tokio",
+ "tokio 0.1.22",
  "trust-dns-proto 0.6.3",
 ]
 
diff --git a/Cargo.toml b/Cargo.toml
index d14c4b2..e985920 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ path = "src/lib.rs"
 env_logger = "0.8"
 
 actix = "0.8"
-actix-codec = "0.1.2"
+actix-codec = "0.3.0"
 actix-files = "0.1"
 actix-http = "0.2"
 actix-multipart = "0.1.5"