diff --git a/Cargo.lock b/Cargo.lock
index 8e640e8f6..49110855e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -225,6 +225,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "206fdffcfa2df7cbe15601ef46c813fce0965eb3286db6b56c583b814b51c81c"
 dependencies = [
  "byteorder",
+ "either",
  "iovec",
 ]
 
@@ -279,9 +280,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "2.31.2"
+version = "2.33.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0f16b89cbb9ee36d87483dc939fe9f1e13c05898d56d7b230a0d4dff033a536"
+checksum = "37e58ac78573c40708d45522f0d80fa2f01cc4f9b4e2bf749807255454312002"
 dependencies = [
  "ansi_term",
  "atty",
@@ -774,7 +775,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0f0ed1a4de2235cabda8558ff5840bffb97fcb64c97827f354a451307df5f72b"
 dependencies = [
  "crossbeam-utils",
- "smallvec 0.6.4",
+ "smallvec 0.6.13",
 ]
 
 [[package]]
@@ -914,6 +915,12 @@ version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09c3753c3db574d215cba4ea76018483895d7bff25a31b49ba45db21c48e50ab"
 
+[[package]]
+name = "either"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd56b59865bce947ac5958779cfa508f6c3b9497cc762b7e24a12d11ccde2c4f"
+
 [[package]]
 name = "elastic-array"
 version = "0.10.2"
@@ -1235,15 +1242,27 @@ dependencies = [
 
 [[package]]
 name = "http"
-version = "0.1.17"
+version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eed324f0f0daf6ec10c474f150505af2c143f251722bf9dbd1261bd1f2ee2c1a"
+checksum = "d6ccf5ede3a895d8856620237b2f02972c1bbc78d2965ad7fe8838d4a0ed41f0"
 dependencies = [
  "bytes",
  "fnv",
  "itoa",
 ]
 
+[[package]]
+name = "http-body"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6741c859c1b2463a423a1dbce98d418e6c3c3fc720fb0d45528657320920292d"
+dependencies = [
+ "bytes",
+ "futures",
+ "http",
+ "tokio-buf",
+]
+
 [[package]]
 name = "httparse"
 version = "1.2.4"
@@ -1280,22 +1299,25 @@ dependencies = [
 
 [[package]]
 name = "hyper"
-version = "0.12.19"
+version = "0.12.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f1ebec079129e43af5e234ef36ee3d7e6085687d145b7ea653b262d16c6b65f1"
+checksum = "9dbe6ed1438e1f8ad955a4701e9a944938e9519f6888d12d8558b645e247d5f6"
 dependencies = [
  "bytes",
  "futures",
  "futures-cpupool",
  "h2",
  "http",
+ "http-body",
  "httparse",
  "iovec",
  "itoa",
  "log 0.4.6",
  "net2",
+ "rustc_version",
  "time",
  "tokio",
+ "tokio-buf",
  "tokio-executor",
  "tokio-io",
  "tokio-reactor",
@@ -1313,7 +1335,7 @@ checksum = "3a800d6aa50af4b5850b2b0f659625ce9504df908e9733b635720483be26174f"
 dependencies = [
  "bytes",
  "futures",
- "hyper 0.12.19",
+ "hyper 0.12.35",
  "native-tls",
  "tokio-io",
 ]
@@ -1402,7 +1424,7 @@ name = "jsonrpc-http-server"
 version = "14.0.3"
 source = "git+https://github.com/paritytech/jsonrpc.git?tag=v14.0.3#2135c25df57715238f1709365e3ea3bedc88e030"
 dependencies = [
- "hyper 0.12.19",
+ "hyper 0.12.35",
  "jsonrpc-core",
  "jsonrpc-server-utils",
  "log 0.4.6",
@@ -1549,13 +1571,14 @@ checksum = "a2f02823cf78b754822df5f7f268fb59822e7296276d3e069d8e8cb26a14bd10"
 
 [[package]]
 name = "libflate"
-version = "0.1.23"
+version = "0.1.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76912aa0196b6f0e06d9c43ee877be45369157c06172ade12fe20ac3ee5ffa15"
+checksum = "d9135df43b1f5d0e333385cb6e7897ecd1a43d7d11b91ac003f4d2c2d2401fdd"
 dependencies = [
  "adler32",
- "byteorder",
  "crc32fast",
+ "rle-decode-fast",
+ "take_mut",
 ]
 
 [[package]]
@@ -1667,6 +1690,12 @@ version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "100aabe6b8ff4e4a7e32c1c13523379802df0772b82466207ac25b013f193376"
 
+[[package]]
+name = "maybe-uninit"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "60302e4db3a61da70c0cb7991976248362f30319e88850c487b9b95bbf059e00"
+
 [[package]]
 name = "memchr"
 version = "2.2.1"
@@ -2062,7 +2091,7 @@ dependencies = [
  "libc",
  "rand 0.5.5",
  "rustc_version",
- "smallvec 0.6.4",
+ "smallvec 0.6.13",
  "winapi 0.3.9",
 ]
 
@@ -2077,7 +2106,7 @@ dependencies = [
  "libc",
  "redox_syscall",
  "rustc_version",
- "smallvec 0.6.4",
+ "smallvec 0.6.13",
  "winapi 0.3.9",
 ]
 
@@ -2337,7 +2366,7 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "771b009e3a508cb67e8823dda454aaa5368c7bc1c16829fb77d3e980440dd34a"
 dependencies = [
- "rand_core 0.3.0",
+ "rand_core 0.2.2",
  "rustc_version",
 ]
 
@@ -2381,7 +2410,7 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7b40677c7be09ae76218dc623efbf7b18e34bced3f38883af07bb75630a21bc4"
 dependencies = [
- "rand_core 0.3.0",
+ "rand_core 0.2.2",
 ]
 
 [[package]]
@@ -2418,7 +2447,7 @@ version = "0.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "effa3fcaa47e18db002bdde6060944b6d2f9cfd8db471c30e873448ad9187be3"
 dependencies = [
- "rand_core 0.3.0",
+ "rand_core 0.2.2",
 ]
 
 [[package]]
@@ -2474,7 +2503,7 @@ dependencies = [
  "encoding_rs",
  "futures",
  "http",
- "hyper 0.12.19",
+ "hyper 0.12.35",
  "hyper-tls",
  "libflate",
  "log 0.4.6",
@@ -2515,6 +2544,12 @@ dependencies = [
  "opaque-debug",
 ]
 
+[[package]]
+name = "rle-decode-fast"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cabe4fa914dec5870285fa7f71f602645da47c486e68486d2b4ceb4a343e90ac"
+
 [[package]]
 name = "rlp"
 version = "0.4.0"
@@ -2845,11 +2880,11 @@ checksum = "f90c5e5fe535e48807ab94fc611d323935f39d4660c52b26b96446a7b33aef10"
 
 [[package]]
 name = "smallvec"
-version = "0.6.4"
+version = "0.6.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "211a489e65e94b103926d2054ae515a1cdb5d515ea0ef414fee23b7e043ce748"
+checksum = "f7b0758c52e15a8b5e3691eae6cc559f08eee9406e548a4477ba4e67770a82b6"
 dependencies = [
- "unreachable",
+ "maybe-uninit",
 ]
 
 [[package]]
@@ -2882,9 +2917,9 @@ dependencies = [
 
 [[package]]
 name = "spin"
-version = "0.5.0"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44363f6f51401c34e7be73db0db371c04705d35efbe9f7d6082e03a921a32c55"
+checksum = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"
 
 [[package]]
 name = "spmc"
@@ -2915,9 +2950,9 @@ checksum = "b639411d0b9c738748b5397d5ceba08e648f4f1992231aa859af1a017f31f60b"
 
 [[package]]
 name = "strsim"
-version = "0.7.0"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb4f380125926a99e52bc279241539c018323fab05ad6368b56f93d9369ff550"
+checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 
 [[package]]
 name = "subtle"
@@ -2974,6 +3009,12 @@ dependencies = [
 name = "table"
 version = "0.1.0"
 
+[[package]]
+name = "take_mut"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f764005d11ee5f36500a149ace24e00e3da98b0158b3e2d53a7495660d3f4d60"
+
 [[package]]
 name = "tempdir"
 version = "0.3.7"
@@ -3029,9 +3070,9 @@ dependencies = [
 
 [[package]]
 name = "textwrap"
-version = "0.9.0"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c0b59b6b4b44d867f1370ef1bd91bfb262bf07bf0ae65c202ea2fbc16153b693"
+checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
 dependencies = [
  "unicode-width",
 ]
@@ -3099,6 +3140,17 @@ dependencies = [
  "tokio-uds",
 ]
 
+[[package]]
+name = "tokio-buf"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8fb220f46c53859a4b7ec083e41dec9778ff0b1851c0942b211edb89e0ccdc46"
+dependencies = [
+ "bytes",
+ "either",
+ "futures",
+]
+
 [[package]]
 name = "tokio-codec"
 version = "0.1.1"
@@ -3403,15 +3455,6 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "826e7639553986605ec5979c7dd957c7895e93eabed50ab2ffa7f6128a75097c"
 
-[[package]]
-name = "unreachable"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
-dependencies = [
- "void",
-]
-
 [[package]]
 name = "untrusted"
 version = "0.6.2"
@@ -3495,9 +3538,9 @@ checksum = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 
 [[package]]
 name = "want"
-version = "0.0.6"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "797464475f30ddb8830cc529aaaae648d581f99e2036a928877dfde027ddf6b3"
+checksum = "b6395efa4784b027708f7451087e647ec73cc74f5d9bc2e418404248d679a230"
 dependencies = [
  "futures",
  "log 0.4.6",