diff --git a/Cargo.lock b/Cargo.lock
index 93d9c8d6..b9e7a30d 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 = "account"
 version = "0.1.0"
@@ -131,7 +133,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ad235dabf00f36301792cfe82499880ba54c6486be094d1047b02bacb67c14e8"
 dependencies = [
  "backtrace-sys",
- "cfg-if",
+ "cfg-if 0.1.10",
  "libc",
  "rustc-demangle",
 ]
@@ -168,7 +170,7 @@ checksum = "99de13bb6361e01e493b3db7928085dcc474b7ba4f5481818e53a89d76b8393f"
 dependencies = [
  "bitflags",
  "cexpr",
- "cfg-if",
+ "cfg-if 0.1.10",
  "clang-sys",
  "clap",
  "env_logger 0.7.1",
@@ -226,7 +228,7 @@ dependencies = [
  "arrayref",
  "arrayvec 0.5.1",
  "cc",
- "cfg-if",
+ "cfg-if 0.1.10",
  "constant_time_eq",
  "crypto-mac",
  "digest 0.8.1",
@@ -278,6 +280,12 @@ version = "0.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "130aac562c0dd69c56b3b1cc8ffd2e17be31d0b6c25b61c96b76231aa23e39e1"
 
+[[package]]
+name = "bytes"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4872d67bab6358e59559027aa3b9157c53d9358c51423c17554809a8858e0f8"
+
 [[package]]
 name = "bzip2"
 version = "0.3.3"
@@ -340,6 +348,12 @@ version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
 
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
 [[package]]
 name = "chain"
 version = "0.1.0"
@@ -511,7 +525,7 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba125de2af0df55319f41944744ad91c71113bf74a4646efff39afe1f6842db1"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
 ]
 
 [[package]]
@@ -558,7 +572,7 @@ version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "69323bff1fb41c635347b8ead484a5ca6c3f11914d784170b158d8449ab07f8e"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "crossbeam-channel 0.4.2",
  "crossbeam-deque",
  "crossbeam-epoch",
@@ -603,7 +617,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "058ed274caafc1f60c4997b5fc07bf7dc7cca454af7c6e81edffe5f33f70dace"
 dependencies = [
  "autocfg 1.0.0",
- "cfg-if",
+ "cfg-if 0.1.10",
  "crossbeam-utils 0.7.2",
  "lazy_static 1.4.0",
  "maybe-uninit",
@@ -617,7 +631,7 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c695eeca1e7173472a32221542ae469b3e9aac3a4fc81f7696bcad82029493db"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "crossbeam-utils 0.7.2",
 ]
 
@@ -627,7 +641,7 @@ version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "04973fa96e96579258a5091af6003abde64af786b860f18622b82e026cca60e6"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "lazy_static 1.4.0",
 ]
 
@@ -638,7 +652,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c3c7c73a2d1e9fc0886a08b93e98eb643461230d5f1925e4036204d5f2e261a8"
 dependencies = [
  "autocfg 1.0.0",
- "cfg-if",
+ "cfg-if 0.1.10",
  "lazy_static 1.4.0",
 ]
 
@@ -713,7 +727,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "93b8a57df1b6a3f0a96df85297d506a871b31252df23f969b9837ccb5d07455c"
 dependencies = [
  "ahash 0.3.2",
- "cfg-if",
+ "cfg-if 0.1.10",
  "num_cpus",
 ]
 
@@ -752,7 +766,7 @@ version = "2.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13aea89a5c93364a98e9b37b2fa237effbb694d5cfe01c5b70941f7eb087d5e3"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "dirs-sys",
 ]
 
@@ -762,7 +776,7 @@ version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "afa0b23de8fd801745c471deffa6e12d248f962c9fd4b4c33787b055599bde7b"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "libc",
  "redox_users",
  "winapi 0.3.8",
@@ -801,7 +815,7 @@ version = "0.8.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cd8d03faa7fe0c1431609dfad7bbe827af30f82e1e2ae6f7ee4fca6bd764bc28"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
 ]
 
 [[package]]
@@ -920,9 +934,9 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ff6d4dab0aa0c8e6346d46052e93b13a16cf847b54ed357087c35011048cc7d"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "libc",
- "redox_syscall",
+ "redox_syscall 0.1.56",
  "winapi 0.3.8",
 ]
 
@@ -943,7 +957,7 @@ version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6bd6d6f4752952feb71363cffc9ebac9411b75b87c6ab6058c40c8900cf43c0f"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "crc32fast",
  "libc",
  "miniz_oxide",
@@ -1129,7 +1143,7 @@ version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7abc8dd8451921606d809ba32e95b6111925cd2906060d2dcc29c070220503eb"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "libc",
  "wasi",
 ]
@@ -1160,7 +1174,7 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d5c295d1c0c68e4e42003d75f908f5e16a1edd1cbe0b0d02e4dc2006a384f47"
 dependencies = [
- "bytes",
+ "bytes 0.5.4",
  "fnv",
  "futures-core",
  "futures-sink",
@@ -1169,7 +1183,7 @@ dependencies = [
  "indexmap",
  "log 0.4.8",
  "slab",
- "tokio",
+ "tokio 0.2.24",
  "tokio-util",
 ]
 
@@ -1243,7 +1257,7 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b708cc7f06493459026f53b9a61a7a121a5d1ec6238dee58ea4941132b30156b"
 dependencies = [
- "bytes",
+ "bytes 0.5.4",
  "fnv",
  "itoa",
 ]
@@ -1254,7 +1268,7 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13d5ff830006f7646652e057693569bfe0d51760c0085a071769d142a205111b"
 dependencies = [
- "bytes",
+ "bytes 0.5.4",
  "http",
 ]
 
@@ -1288,7 +1302,7 @@ version = "0.13.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e7b15203263d1faa615f9337d79c1d37959439dc46c2b4faab33286fadc2a1c5"
 dependencies = [
- "bytes",
+ "bytes 0.5.4",
  "futures-channel",
  "futures-core",
  "futures-util",
@@ -1301,7 +1315,7 @@ dependencies = [
  "net2",
  "pin-project",
  "time",
- "tokio",
+ "tokio 0.2.24",
  "tower-service",
  "want",
 ]
@@ -1312,10 +1326,10 @@ version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3adcd308402b9553630734e9c36b77a7e48b3821251ca2493e8cd596763aafaa"
 dependencies = [
- "bytes",
+ "bytes 0.5.4",
  "hyper",
  "native-tls",
- "tokio",
+ "tokio 0.2.24",
  "tokio-tls",
 ]
 
@@ -1350,6 +1364,15 @@ dependencies = [
  "autocfg 1.0.0",
 ]
 
+[[package]]
+name = "instant"
+version = "0.1.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
+dependencies = [
+ "cfg-if 1.0.0",
+]
+
 [[package]]
 name = "iovec"
 version = "0.1.4"
@@ -1466,9 +1489,9 @@ checksum = "b294d6fa9ee409a054354afc4352b0b9ef7ca222c69b8812cbea9e7d2bf3783f"
 
 [[package]]
 name = "libc"
-version = "0.2.67"
+version = "0.2.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb147597cdf94ed43ab7a9038716637d2d1bf2bc571da995d0028dec06bd3018"
+checksum = "349d5a591cd28b49e1d1037471617a32ddcda5731b99419008085f72d5a53836"
 
 [[package]]
 name = "libloading"
@@ -1520,6 +1543,15 @@ dependencies = [
  "scopeguard 1.1.0",
 ]
 
+[[package]]
+name = "lock_api"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "88943dd7ef4a2e5a4bfa2753aaab3013e34ce2533d1996fb18ef591e315e2b3b"
+dependencies = [
+ "scopeguard 1.1.0",
+]
+
 [[package]]
 name = "log"
 version = "0.3.9"
@@ -1535,7 +1567,7 @@ version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "14b6052be84e6b71ab17edffc2eeabf5c2c3ae1fdb464aae35ac50c67a44e1f7"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
 ]
 
 [[package]]
@@ -1579,7 +1611,7 @@ name = "mempool"
 version = "0.1.0"
 dependencies = [
  "account",
- "cfg-if",
+ "cfg-if 0.1.10",
  "chain",
  "chrono",
  "constants",
@@ -1637,7 +1669,7 @@ dependencies = [
  "bitvec",
  "blake2-rfc",
  "byteorder",
- "cfg-if",
+ "cfg-if 0.1.10",
  "cmake",
  "crypto",
  "enum-repr",
@@ -1672,7 +1704,7 @@ version = "0.6.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "302dec22bcf6bae6dfb69c647187f4b4d0fb6f535521f7bc022430ce8e12008f"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "fuchsia-zircon",
  "fuchsia-zircon-sys",
  "iovec",
@@ -1686,28 +1718,18 @@ dependencies = [
 ]
 
 [[package]]
-name = "mio-named-pipes"
-version = "0.1.6"
+name = "mio"
+version = "0.7.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f5e374eff525ce1c5b7687c4cef63943e7686524a387933ad27ca7ec43779cb3"
+checksum = "8067b404fe97c70829f082dec8bcf4f71225d7eaea1d8645349cb76fa06205cc"
 dependencies = [
+ "libc",
  "log 0.4.8",
- "mio",
- "miow 0.3.3",
+ "miow 0.3.7",
+ "ntapi",
  "winapi 0.3.8",
 ]
 
-[[package]]
-name = "mio-uds"
-version = "0.6.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "966257a94e196b11bb43aca423754d87429960a768de9414f3691d6957abf125"
-dependencies = [
- "iovec",
- "libc",
- "mio",
-]
-
 [[package]]
 name = "miow"
 version = "0.2.1"
@@ -1722,11 +1744,10 @@ dependencies = [
 
 [[package]]
 name = "miow"
-version = "0.3.3"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "396aa0f2003d7df8395cb93e09871561ccc3e785f0acb369170e8cc74ddf9226"
+checksum = "b9f1c5b025cda876f66ef43a113f91ebc9f4ccef34843000e0adf6ebbab84e21"
 dependencies = [
- "socket2",
  "winapi 0.3.8",
 ]
 
@@ -1764,7 +1785,7 @@ version = "0.2.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42550d9fb7b6684a6d404d9fa7250c2eb2646df731d1c06afc06dcee9e1bcf88"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "libc",
  "winapi 0.3.8",
 ]
@@ -1776,7 +1797,7 @@ dependencies = [
  "async-trait",
  "bin-tools",
  "byteorder",
- "bytes",
+ "bytes 0.5.4",
  "chain",
  "chrono",
  "constants",
@@ -1805,7 +1826,7 @@ dependencies = [
  "tempdir",
  "test-helpers",
  "timer",
- "tokio",
+ "tokio 1.8.4",
  "tokio-io-timeout",
  "transactions",
  "triomphe",
@@ -1834,6 +1855,15 @@ dependencies = [
  "version_check 0.1.5",
 ]
 
+[[package]]
+name = "ntapi"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7a31937dea023539c72ddae0e3571deadc1414b300483fa7aaec176168cfa9d2"
+dependencies = [
+ "winapi 0.3.8",
+]
+
 [[package]]
 name = "num"
 version = "0.1.42"
@@ -1969,6 +1999,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "once_cell"
+version = "1.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7709cef83f0c1f58f666e746a08b21e0085f7440fa6a29cc194d68aac97a4225"
+
 [[package]]
 name = "openssl"
 version = "0.10.28"
@@ -1976,7 +2012,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "973293749822d7dd6370d6da1e523b0d1db19f06c459134c658b2a4261378b52"
 dependencies = [
  "bitflags",
- "cfg-if",
+ "cfg-if 0.1.10",
  "foreign-types",
  "lazy_static 1.4.0",
  "libc",
@@ -2047,6 +2083,17 @@ dependencies = [
  "parking_lot_core 0.7.0",
 ]
 
+[[package]]
+name = "parking_lot"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6d7744ac029df22dca6284efe4e898991d28e3085c706c972bcd7da4a27a15eb"
+dependencies = [
+ "instant",
+ "lock_api 0.4.6",
+ "parking_lot_core 0.8.3",
+]
+
 [[package]]
 name = "parking_lot_core"
 version = "0.3.1"
@@ -2079,11 +2126,25 @@ version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7582838484df45743c8434fbff785e8edf260c28748353d44bc0da32e0ceabf1"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "cloudabi",
  "libc",
- "redox_syscall",
- "smallvec 1.2.0",
+ "redox_syscall 0.1.56",
+ "smallvec 1.8.0",
+ "winapi 0.3.8",
+]
+
+[[package]]
+name = "parking_lot_core"
+version = "0.8.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa7a782938e745763fe6907fc6ba86946d72f49fe7e21de074e08128a99fb018"
+dependencies = [
+ "cfg-if 1.0.0",
+ "instant",
+ "libc",
+ "redox_syscall 0.2.13",
+ "smallvec 1.8.0",
  "winapi 0.3.8",
 ]
 
@@ -2125,7 +2186,7 @@ dependencies = [
  "ansi_term 0.9.0",
  "bin-tools",
  "byteorder",
- "cfg-if",
+ "cfg-if 0.1.10",
  "criterion",
  "crypto",
  "elastic-array",
@@ -2171,6 +2232,12 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "237844750cfbb86f67afe27eee600dfbbcb6188d734139b534cbfbf4f96792ae"
 
+[[package]]
+name = "pin-project-lite"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0a7ae3ac2f1173085d398531c705756c94a4c56843785df85a60c1a0afac116"
+
 [[package]]
 name = "pin-utils"
 version = "0.1.0-alpha.4"
@@ -2214,11 +2281,11 @@ checksum = "369a6ed065f249a159e06c45752c780bda2fb53c995718f9e484d08daa9eb42e"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.9"
+version = "1.0.39"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c09721c6781493a2a492a96b5a5bf19b65917fe6728884e7c44dd0c60ca3435"
+checksum = "c54b25569025b7fc9651de43004ae593a75ad88543b17178aa5e1b9c4f15f56f"
 dependencies = [
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -2239,7 +2306,7 @@ name = "purple"
 version = "0.0.1"
 dependencies = [
  "account",
- "cfg-if",
+ "cfg-if 0.1.10",
  "chain",
  "clap",
  "crypto",
@@ -2269,7 +2336,7 @@ dependencies = [
  "slog-stdlog",
  "slog-term",
  "static_assertions",
- "tokio",
+ "tokio 1.8.4",
  "transactions",
  "triomphe",
  "unwrap",
@@ -2575,6 +2642,15 @@ version = "0.1.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2439c63f3f6139d1b57529d16bc3b8bb855230c8efcc5d3a896c8bea7c3b1e84"
 
+[[package]]
+name = "redox_syscall"
+version = "0.2.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62f25bc4c7e55e0b0b7a1d43fb893f4fa1361d0abe38b9ce4f323c2adfe6ef42"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "redox_users"
 version = "0.3.4"
@@ -2582,7 +2658,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09b23093265f8d200fa7b4c2c76297f47e681c655f6f1285a8780d6a022f7431"
 dependencies = [
  "getrandom",
- "redox_syscall",
+ "redox_syscall 0.1.56",
  "rust-argon2",
 ]
 
@@ -2629,7 +2705,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "02b81e49ddec5109a9dcfc5f2a317ff53377c915e9ae9d4f2fb50914b85614e2"
 dependencies = [
  "base64",
- "bytes",
+ "bytes 0.5.4",
  "cookie",
  "cookie_store",
  "encoding_rs",
@@ -2646,12 +2722,12 @@ dependencies = [
  "mime_guess",
  "native-tls",
  "percent-encoding 2.1.0",
- "pin-project-lite",
+ "pin-project-lite 0.1.4",
  "serde",
  "serde_json",
  "serde_urlencoded",
  "time",
- "tokio",
+ "tokio 0.2.24",
  "tokio-tls",
  "url 2.1.1",
  "wasm-bindgen",
@@ -3007,21 +3083,9 @@ dependencies = [
 
 [[package]]
 name = "smallvec"
-version = "1.2.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c2fb2ec9bcd216a5b0d0ccf31ab17b5ed1d627960edff65bbe95d3ce221cefc"
-
-[[package]]
-name = "socket2"
-version = "0.3.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e8b74de517221a2cb01a53349cf54182acdc31a074727d3079068448c0676d85"
-dependencies = [
- "cfg-if",
- "libc",
- "redox_syscall",
- "winapi 0.3.8",
-]
+checksum = "f2dd574626839106c320a323308629dcb1acfc96e32a8cba364ddc61ac23ee83"
 
 [[package]]
 name = "spin"
@@ -3055,13 +3119,13 @@ checksum = "2d67a5a62ba6e01cb2192ff309324cb4875d0c451d55fe2319433abe7a05a8ee"
 
 [[package]]
 name = "syn"
-version = "1.0.16"
+version = "1.0.96"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "123bd9499cfb380418d509322d7a6d52e5315f064fe4b3ad18a53d6b92c07859"
+checksum = "0748dd251e24453cb8717f0354206b91557e4ec8703673a4b30208f2abaf1ebf"
 dependencies = [
  "proc-macro2",
  "quote",
- "unicode-xid",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -3090,7 +3154,7 @@ checksum = "b3196bfbffbba3e57481b6ea32249fbaf590396a52505a2615adbb79d9d826d3"
 dependencies = [
  "filetime",
  "libc",
- "redox_syscall",
+ "redox_syscall 0.1.56",
  "xattr",
 ]
 
@@ -3110,10 +3174,10 @@ version = "3.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "libc",
  "rand 0.7.3",
- "redox_syscall",
+ "redox_syscall 0.1.56",
  "remove_dir_all",
  "winapi 0.3.8",
 ]
@@ -3177,7 +3241,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
 dependencies = [
  "libc",
- "redox_syscall",
+ "redox_syscall 0.1.56",
  "winapi 0.3.8",
 ]
 
@@ -3211,24 +3275,36 @@ dependencies = [
 
 [[package]]
 name = "tokio"
-version = "0.2.14"
+version = "0.2.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2751672f9da075d045c67fdb0068be9850ab7b231fa77bb51d6fd35da9c0bb0d"
+checksum = "099837d3464c16a808060bb3f02263b412f6fafcb5d01c533d309985fbeebe48"
 dependencies = [
- "bytes",
+ "bytes 0.5.4",
  "fnv",
- "futures-core",
  "iovec",
  "lazy_static 1.4.0",
+ "memchr",
+ "mio 0.6.21",
+ "pin-project-lite 0.1.4",
+ "slab",
+]
+
+[[package]]
+name = "tokio"
+version = "1.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "50dae83881bc9b0403dd5b44ea9deed3e939856cc8722d5be37f0d6e5c6d53dd"
+dependencies = [
+ "autocfg 1.0.0",
+ "bytes 1.1.0",
  "libc",
  "memchr",
- "mio",
- "mio-named-pipes",
- "mio-uds",
+ "mio 0.7.14",
  "num_cpus",
- "pin-project-lite",
+ "once_cell",
+ "parking_lot 0.11.1",
+ "pin-project-lite 0.2.9",
  "signal-hook-registry",
- "slab",
  "tokio-macros",
  "winapi 0.3.8",
 ]
@@ -3239,15 +3315,15 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9390a43272c8a6ac912ed1d1e2b6abeafd5047e05530a2fa304deee041a06215"
 dependencies = [
- "bytes",
- "tokio",
+ "bytes 0.5.4",
+ "tokio 0.2.24",
 ]
 
 [[package]]
 name = "tokio-macros"
-version = "0.2.5"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0c3acc6aa564495a0f2e1d59fab677cd7f81a19994cfc7f3ad0e64301560389"
+checksum = "9724f9a975fb987ef7a3cd9be0350edcbe130698af5b8f7a631e23d42d052484"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3261,7 +3337,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7bde02a3a5291395f59b06ec6945a3077602fac2b07eeeaf0dee2122f3619828"
 dependencies = [
  "native-tls",
- "tokio",
+ "tokio 0.2.24",
 ]
 
 [[package]]
@@ -3270,12 +3346,12 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "571da51182ec208780505a32528fc5512a8fe1443ab960b3f2f3ef093cd16930"
 dependencies = [
- "bytes",
+ "bytes 0.5.4",
  "futures-core",
  "futures-sink",
  "log 0.4.8",
- "pin-project-lite",
- "tokio",
+ "pin-project-lite 0.1.4",
+ "tokio 0.2.24",
 ]
 
 [[package]]
@@ -3367,13 +3443,19 @@ dependencies = [
  "matches",
 ]
 
+[[package]]
+name = "unicode-ident"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d22af068fba1eb5edcb4aea19d382b2a3deb4c8f9d475c589b6ada9e0fd493ee"
+
 [[package]]
 name = "unicode-normalization"
 version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5479532badd04e128284890390c1e876ef7a993d0570b3597ae43dfa1d59afa4"
 dependencies = [
- "smallvec 1.2.0",
+ "smallvec 1.8.0",
 ]
 
 [[package]]
@@ -3473,7 +3555,7 @@ version = "0.2.59"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3557c397ab5a8e347d434782bcd31fc1483d927a6826804cec05cc792ee2519d"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "serde",
  "serde_json",
  "wasm-bindgen-macro",
@@ -3500,7 +3582,7 @@ version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "457414a91863c0ec00090dba537f88ab955d93ca6555862c29b6d860990b8a8a"
 dependencies = [
- "cfg-if",
+ "cfg-if 0.1.10",
  "js-sys",
  "wasm-bindgen",
  "web-sys",
diff --git a/Cargo.toml b/Cargo.toml
index e36821f3..409a3f29 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ slog-term = "2.4.1"
 slog-async = "2.3.0"
 parking_lot = "0.7.1"
 flume = "0.7.1"
-tokio = { version = "0.2.14", features = ["full"] } 
+tokio = { version = "1.8.4", features = ["full"] } 
 dirs = "1.0.4"
 elastic-array = "0.10.0"
 jsonrpc-core = "9.0.0"
diff --git a/src/network/Cargo.toml b/src/network/Cargo.toml
index 0071a6f3..cc4bbd82 100644
--- a/src/network/Cargo.toml
+++ b/src/network/Cargo.toml
@@ -14,7 +14,7 @@ lazy_static = "1.4.0"
 bytes = "0.5.4"
 futures = "0.3.4"
 chrono = "0.4.6"
-tokio = { version = "0.2.14", features = ["full"] } 
+tokio = { version = "1.8.4", features = ["full"] } 
 tokio-io-timeout = "0.4.0"
 futures-io = "0.3.4"
 futures-util = "0.3.4"