diff --git a/packages/kosu.js/package.json b/packages/kosu.js/package.json
index 52f90326..980d9222 100644
--- a/packages/kosu.js/package.json
+++ b/packages/kosu.js/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@kosu/kosu.js",
-    "version": "0.1.1",
+    "version": "0.1.4",
     "description": "JavaScript module for connecting with Kosu.",
     "main": "dist/index.js",
     "license": "MIT",
@@ -29,7 +29,7 @@
         "@0x/utils": "^4.3.1",
         "@0x/web3-wrapper": "^6.0.5",
         "@babel/core": "^7.4.4",
-        "@kosu/system-contracts": "^0.1.1",
+        "@kosu/system-contracts": "^0.1.4",
         "@kosu/tsc-config": "^0.1.0",
         "@kosu/tslint-config": "^0.0.4",
         "ethereum-protocol": "^1.0.1",
diff --git a/yarn.lock b/yarn.lock
index b78331ac..f8989c3c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2069,6 +2069,29 @@
   resolved "https://registry.yarnpkg.com/@istanbuljs/nyc-config-typescript/-/nyc-config-typescript-0.1.3.tgz#944d15b3ebdb71f963a628daffaa25ade981bb86"
   integrity sha512-EzRFg92bRSD1W/zeuNkeGwph0nkWf+pP2l/lYW4/5hav7RjKKBN5kV1Ix7Tvi0CMu3pC4Wi/U7rNisiJMR3ORg==
 
+"@kosu/kosu.js@0.1.1":
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/@kosu/kosu.js/-/kosu.js-0.1.1.tgz#50732b20b165152efb7950a879e275f7d1334184"
+  integrity sha512-y8RpD4JUeQy7aL86BLKA+KDQZeBB8MizXQFrSMM4lPJHMjnZ9po6JaQCLykTDQjGpccKnagkeJjicfLPTtXSSQ==
+  dependencies:
+    "@0x/utils" "^4.3.1"
+    "@0x/web3-wrapper" "^6.0.5"
+    "@babel/core" "^7.4.4"
+    "@kosu/system-contracts" "^0.1.1"
+    "@kosu/tsc-config" "^0.1.0"
+    "@kosu/tslint-config" "^0.0.4"
+    ethereum-protocol "^1.0.1"
+    ethereumjs-abi "^0.6.6"
+    ethereumjs-util "^5.2.0"
+    isomorphic-ws "^4.0.1"
+    node-fetch "^2.2.0"
+    truffle-contract "^4.0.11"
+    web3 "1.0.0-beta.37"
+    web3-eth-contract "^1.0.0-beta.53"
+    web3-provider-engine "^15.0.0"
+    web3-utils "^1.0.0-beta.53"
+    ws "^6.1.4"
+
 "@ledgerhq/devices@^4.63.2":
   version "4.63.2"
   resolved "https://registry.yarnpkg.com/@ledgerhq/devices/-/devices-4.63.2.tgz#8dc650b7ff9f074d4d83858618aa4bdc0a43bc87"
@@ -3426,6 +3449,16 @@ ajv@^6.0.1, ajv@^6.1.0, ajv@^6.5.5:
     json-schema-traverse "^0.4.1"
     uri-js "^4.2.2"
 
+ajv@^6.10.0:
+  version "6.10.2"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-6.10.2.tgz#d3cea04d6b017b2894ad69040fec8b623eb4bd52"
+  integrity sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==
+  dependencies:
+    fast-deep-equal "^2.0.1"
+    fast-json-stable-stringify "^2.0.0"
+    json-schema-traverse "^0.4.1"
+    uri-js "^4.2.2"
+
 algoliasearch@^3.24.5:
   version "3.33.0"
   resolved "https://registry.yarnpkg.com/algoliasearch/-/algoliasearch-3.33.0.tgz#83b541124ebb0db54643009d4e660866b3177cdf"
@@ -4511,7 +4544,7 @@ big.js@^5.2.2:
   resolved "https://registry.yarnpkg.com/big.js/-/big.js-5.2.2.tgz#65f0af382f578bcdc742bd9c281e9cb2d7768328"
   integrity sha512-vyL2OymJxmarO8gxMr0mhChsO9QGwhynfuu4+MHTAW6czfq9humCB7rKpUjDd9YUiDPU4mzpyupFSvOClAwbmQ==
 
-bignumber.js@7.2.1:
+bignumber.js@7.2.1, bignumber.js@^7.2.1:
   version "7.2.1"
   resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-7.2.1.tgz#80c048759d826800807c4bfd521e50edbba57a5f"
   integrity sha512-S4XzBk5sMB+Rcb/LNcpzXr57VRTxgAvaAEDAl1AwRx27j00hT84O6OkteE7u8UB3NuaaygCRrEpqox4uDOrbdQ==
@@ -6049,6 +6082,11 @@ crypto-js@^3.1.4, crypto-js@^3.1.5:
   resolved "https://registry.yarnpkg.com/crypto-js/-/crypto-js-3.1.8.tgz#715f070bf6014f2ae992a98b3929258b713f08d5"
   integrity sha1-cV8HC/YBTyrpkqmLOSkli3E/CNU=
 
+crypto-js@^3.1.9-1:
+  version "3.1.9-1"
+  resolved "https://registry.yarnpkg.com/crypto-js/-/crypto-js-3.1.9-1.tgz#fda19e761fc077e01ffbfdc6e9fdfc59e8806cd8"
+  integrity sha1-/aGedh/Ad+Af+/3G6f38WeiAbNg=
+
 crypto-random-string@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/crypto-random-string/-/crypto-random-string-1.0.0.tgz#a230f64f568310e1498009940790ec99545bca7e"
@@ -7438,6 +7476,38 @@ ethers@4.0.0-beta.1:
     uuid "2.0.1"
     xmlhttprequest "1.8.0"
 
+ethers@4.0.0-beta.3:
+  version "4.0.0-beta.3"
+  resolved "https://registry.yarnpkg.com/ethers/-/ethers-4.0.0-beta.3.tgz#15bef14e57e94ecbeb7f9b39dd0a4bd435bc9066"
+  integrity sha512-YYPogooSknTwvHg3+Mv71gM/3Wcrx+ZpCzarBj3mqs9njjRkrOo2/eufzhHloOCo3JSoNI4TQJJ6yU5ABm3Uog==
+  dependencies:
+    "@types/node" "^10.3.2"
+    aes-js "3.0.0"
+    bn.js "^4.4.0"
+    elliptic "6.3.3"
+    hash.js "1.1.3"
+    js-sha3 "0.5.7"
+    scrypt-js "2.0.3"
+    setimmediate "1.0.4"
+    uuid "2.0.1"
+    xmlhttprequest "1.8.0"
+
+ethers@^4.0.0-beta.1, ethers@^4.0.32:
+  version "4.0.33"
+  resolved "https://registry.yarnpkg.com/ethers/-/ethers-4.0.33.tgz#f7b88d2419d731a39aefc37843a3f293e396f918"
+  integrity sha512-lAHkSPzBe0Vj+JrhmkEHLtUEKEheVktIjGDyE9gbzF4zf1vibjYgB57LraDHu4/ItqWVkztgsm8GWqcDMN+6vQ==
+  dependencies:
+    "@types/node" "^10.3.2"
+    aes-js "3.0.0"
+    bn.js "^4.4.0"
+    elliptic "6.3.3"
+    hash.js "1.1.3"
+    js-sha3 "0.5.7"
+    scrypt-js "2.0.4"
+    setimmediate "1.0.4"
+    uuid "2.0.1"
+    xmlhttprequest "1.8.0"
+
 ethers@^4.0.27, ethers@~4.0.4:
   version "4.0.30"
   resolved "https://registry.yarnpkg.com/ethers/-/ethers-4.0.30.tgz#140653fd08adf2834bb2f3aceefa10d04205b47d"
@@ -7480,7 +7550,7 @@ eventemitter3@3.1.0:
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.0.tgz#090b4d6cdbd645ed10bf750d4b5407942d7ba163"
   integrity sha512-ivIvhpq/Y0uSjcHDcOIccjmYjGLcP09MFGE7ysAwkAvkXfpZlC985pH2/ui64DKazbTW/4kN3yqozUxlXzI6cA==
 
-eventemitter3@^3.0.0, eventemitter3@^3.1.0:
+eventemitter3@3.1.2, eventemitter3@^3.0.0, eventemitter3@^3.1.0:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/eventemitter3/-/eventemitter3-3.1.2.tgz#2d3d48f9c346698fce83a85d7d664e98535df6e7"
   integrity sha512-tvtQIeLVHjDkJYnzf2dgVMxfuSGJeM/7UCG17TT4EumTfNtF+0nebF/4zWOIkCreAbtNqhGEboB6BWrwqNaw4Q==
@@ -12182,6 +12252,13 @@ oboe@2.1.3:
   dependencies:
     http-https "^1.0.0"
 
+oboe@2.1.4:
+  version "2.1.4"
+  resolved "https://registry.yarnpkg.com/oboe/-/oboe-2.1.4.tgz#20c88cdb0c15371bb04119257d4fdd34b0aa49f6"
+  integrity sha1-IMiM2wwVNxuwQRklfU/dNLCqSfY=
+  dependencies:
+    http-https "^1.0.0"
+
 obuf@^1.0.0, obuf@^1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/obuf/-/obuf-1.1.2.tgz#09bea3343d41859ebd446292d11c9d4db619084e"
@@ -15662,6 +15739,41 @@ trim-right@^1.0.1:
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
   integrity sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM=
 
+truffle-blockchain-utils@^0.0.10:
+  version "0.0.10"
+  resolved "https://registry.yarnpkg.com/truffle-blockchain-utils/-/truffle-blockchain-utils-0.0.10.tgz#18b772673635a95a893f7083f7be6bd62227462b"
+  integrity sha512-gVvagLCvYD0QXfnkxy6I48P6O+d7TEY0smc2VFuwldl1/clLVWE+KfBO/jFMaAz+nupTQeKvPhNTeyh3JAsCeA==
+
+truffle-contract-schema@^3.0.11:
+  version "3.0.11"
+  resolved "https://registry.yarnpkg.com/truffle-contract-schema/-/truffle-contract-schema-3.0.11.tgz#202f6982b51bcad032b7ff2a8d5837853fb69301"
+  integrity sha512-YcgSOlrufi6VtnXg8LU5Ma7JHzHpnZQxzB1PSWnb+JOTc1nL02XRoCWTgEO7PkJnFgf6yrwOpW0ajSwHk3zQ7Q==
+  dependencies:
+    ajv "^6.10.0"
+    crypto-js "^3.1.9-1"
+    debug "^4.1.0"
+
+truffle-contract@^4.0.11:
+  version "4.0.25"
+  resolved "https://registry.yarnpkg.com/truffle-contract/-/truffle-contract-4.0.25.tgz#dc58c3ad20a4b1654efc0d55020e3bb8b9adac66"
+  integrity sha512-ngy+ljTCSs/Arv4/9xUjq6mBdAHvQjFvJGqMcBDoNZSXUdvuW4qmX9gu/cOFEt2hdsBcpt0sx7DrXGlY4O97ww==
+  dependencies:
+    bignumber.js "^7.2.1"
+    ethers "^4.0.0-beta.1"
+    truffle-blockchain-utils "^0.0.10"
+    truffle-contract-schema "^3.0.11"
+    truffle-error "^0.0.5"
+    truffle-interface-adapter "^0.2.0"
+    web3 "1.0.0-beta.37"
+    web3-core-promievent "1.0.0-beta.37"
+    web3-eth-abi "1.0.0-beta.37"
+    web3-utils "1.0.0-beta.37"
+
+truffle-error@^0.0.5:
+  version "0.0.5"
+  resolved "https://registry.yarnpkg.com/truffle-error/-/truffle-error-0.0.5.tgz#6b5740c9f3aac74f47b85d654fff7fe2c1fc5e0e"
+  integrity sha512-JpzPLMPSCE0vaZ3vH5NO5u42GpMj/Y1SRBkQ6b69PSw3xMSH1umApN32cEcg1nnh8q5FNYc5FnKu0m4tiBffyQ==
+
 truffle-hdwallet-provider@^1.0.6:
   version "1.0.11"
   resolved "https://registry.yarnpkg.com/truffle-hdwallet-provider/-/truffle-hdwallet-provider-1.0.11.tgz#caa18fc0770068662dc00988578b2b1baaf2a764"
@@ -15672,6 +15784,15 @@ truffle-hdwallet-provider@^1.0.6:
     web3 "1.0.0-beta.37"
     websocket "^1.0.28"
 
+truffle-interface-adapter@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/truffle-interface-adapter/-/truffle-interface-adapter-0.2.0.tgz#8f998dc27c039e5bb93b44c37726f8c32cfd026d"
+  integrity sha512-NMj2gGr96/Ny5P2CvVzvkMAYXFjZfkdLCLt0kOiYGltoTt7EVP+HVLpYUfvxHjmEYytGdjXjrt/1srCfbPbAsQ==
+  dependencies:
+    bn.js "^4.11.8"
+    ethers "^4.0.32"
+    web3 "1.0.0-beta.37"
+
 ts-loader@^6.0.2:
   version "6.0.3"
   resolved "https://registry.yarnpkg.com/ts-loader/-/ts-loader-6.0.3.tgz#6ef6f086d7080b9cf02ed1945377aeb5ed1b5cf6"
@@ -16005,7 +16126,7 @@ underscore@1.8.3:
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.8.3.tgz#4f3fb53b106e6097fcf9cb4109f2a5e9bdfa5022"
   integrity sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI=
 
-underscore@~1.9.1:
+underscore@1.9.1, underscore@~1.9.1:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.9.1.tgz#06dce34a0e68a7babc29b365b8e74b8925203961"
   integrity sha512-5/4etnCkd9c8gwgowi5/om/mYO5ajCaOgdzj/oW+0eQV9WxKBDZw5+ycmKmeaTXjInS/W0BzpGLo2xR2aBwZdg==
@@ -16226,16 +16347,16 @@ utf8@2.1.1:
   resolved "https://registry.yarnpkg.com/utf8/-/utf8-2.1.1.tgz#2e01db02f7d8d0944f77104f1609eb0c304cf768"
   integrity sha1-LgHbAvfY0JRPdxBPFgnrDDBM92g=
 
+utf8@3.0.0, utf8@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/utf8/-/utf8-3.0.0.tgz#f052eed1364d696e769ef058b183df88c87f69d1"
+  integrity sha512-E8VjFIQ/TyQgp+TZfS6l8yp/xWppSAHzidGiRrqe4bK4XP9pTRyKFgGJpO3SN7zdX4DeomTrwaseCHovfpFcqQ==
+
 utf8@^2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/utf8/-/utf8-2.1.2.tgz#1fa0d9270e9be850d9b05027f63519bf46457d96"
   integrity sha1-H6DZJw6b6FDZsFAn9jUZv0ZFfZY=
 
-utf8@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/utf8/-/utf8-3.0.0.tgz#f052eed1364d696e769ef058b183df88c87f69d1"
-  integrity sha512-E8VjFIQ/TyQgp+TZfS6l8yp/xWppSAHzidGiRrqe4bK4XP9pTRyKFgGJpO3SN7zdX4DeomTrwaseCHovfpFcqQ==
-
 util-deprecate@^1.0.1, util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
@@ -16557,6 +16678,15 @@ web3-core-helpers@1.0.0-beta.53:
     web3-eth-iban "1.0.0-beta.53"
     web3-utils "1.0.0-beta.53"
 
+web3-core-helpers@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-core-helpers/-/web3-core-helpers-1.2.0.tgz#023947323cebd021e43a67145a5087627ce87fb3"
+  integrity sha512-KLCCP2FS1cMz23Y9l3ZaEDzaUky+GpsNavl4Hn1xX8lNaKcfgGEF+DgtAY/TfPQYAxLjLrSbIFUDzo9H/W1WAQ==
+  dependencies:
+    underscore "1.9.1"
+    web3-eth-iban "1.2.0"
+    web3-utils "1.2.0"
+
 web3-core-method@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-core-method/-/web3-core-method-1.0.0-beta.35.tgz#fc10e2d546cf4886038e6130bd5726b0952a4e5f"
@@ -16588,6 +16718,17 @@ web3-core-method@1.0.0-beta.53:
     eventemitter3 "3.1.0"
     lodash "^4.17.11"
 
+web3-core-method@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-core-method/-/web3-core-method-1.2.0.tgz#9f6a6939d15f53bc74d086f280fbd62461546cd3"
+  integrity sha512-Iff5rCL+sgHe6zZVZijp818aRixKQf3ZAyQsT6ewER1r9yqXsH89DJtX33Xw8xiaYSwUFcpNs2j+Kluhv/eVAw==
+  dependencies:
+    underscore "1.9.1"
+    web3-core-helpers "1.2.0"
+    web3-core-promievent "1.2.0"
+    web3-core-subscriptions "1.2.0"
+    web3-utils "1.2.0"
+
 web3-core-promievent@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-core-promievent/-/web3-core-promievent-1.0.0-beta.35.tgz#4f1b24737520fa423fee3afee110fbe82bcb8691"
@@ -16604,6 +16745,14 @@ web3-core-promievent@1.0.0-beta.37:
     any-promise "1.3.0"
     eventemitter3 "1.1.1"
 
+web3-core-promievent@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-core-promievent/-/web3-core-promievent-1.2.0.tgz#d6454837a307da5b453fe3077743fe25801a07a1"
+  integrity sha512-9THNYsZka91AX4LZGZvka5hio9+QlOY22hNgCiagmCmYytyKk3cXftL6CWefnNF7XgW8sy/ew5lzWLVsQW61Lw==
+  dependencies:
+    any-promise "1.3.0"
+    eventemitter3 "3.1.2"
+
 web3-core-requestmanager@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-core-requestmanager/-/web3-core-requestmanager-1.0.0-beta.35.tgz#2b77cbf6303720ad68899b39fa7f584dc03dbc8f"
@@ -16626,6 +16775,17 @@ web3-core-requestmanager@1.0.0-beta.37:
     web3-providers-ipc "1.0.0-beta.37"
     web3-providers-ws "1.0.0-beta.37"
 
+web3-core-requestmanager@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-core-requestmanager/-/web3-core-requestmanager-1.2.0.tgz#a7f9995495340037e7ac72792c1885c35c1e7616"
+  integrity sha512-hPe1jyESodXAiE7qJglu7ySo4GINCn5CgG+9G1ATLQbriZsir83QMSeKQekv/hckKFIf4SvZJRPEBhtAle+Dhw==
+  dependencies:
+    underscore "1.9.1"
+    web3-core-helpers "1.2.0"
+    web3-providers-http "1.2.0"
+    web3-providers-ipc "1.2.0"
+    web3-providers-ws "1.2.0"
+
 web3-core-subscriptions@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-core-subscriptions/-/web3-core-subscriptions-1.0.0-beta.35.tgz#c1b76a2ad3c6e80f5d40b8ba560f01e0f4628758"
@@ -16653,6 +16813,15 @@ web3-core-subscriptions@1.0.0-beta.53:
     eventemitter3 "^3.1.0"
     lodash "^4.17.11"
 
+web3-core-subscriptions@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-core-subscriptions/-/web3-core-subscriptions-1.2.0.tgz#d359b9b5fb6f6a700f1b383be11de7925cb7549f"
+  integrity sha512-DHipGH8It5E4HxxvymhkudcYhBVgGx6MwGWobIVKFgp6JRxtuvAbqwrMbuD/+78J6yXOa4y9zVXBk12dm2NXGg==
+  dependencies:
+    eventemitter3 "3.1.2"
+    underscore "1.9.1"
+    web3-core-helpers "1.2.0"
+
 web3-core@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-core/-/web3-core-1.0.0-beta.35.tgz#0c44d3c50d23219b0b1531d145607a9bc7cd4b4f"
@@ -16684,6 +16853,16 @@ web3-core@1.0.0-beta.53:
     lodash "^4.17.11"
     web3-utils "1.0.0-beta.53"
 
+web3-core@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-core/-/web3-core-1.2.0.tgz#6f3c59f84b2af9ab0ee7617d3c5208a814d3953c"
+  integrity sha512-Vy+fargzx94COdihE79zIM5lb/XAl/LJlgGdmz2a6QhgGZrSL8K6DKKNS+OuORAcLJN2PWNMc4IdfknkOw1PhQ==
+  dependencies:
+    web3-core-helpers "1.2.0"
+    web3-core-method "1.2.0"
+    web3-core-requestmanager "1.2.0"
+    web3-utils "1.2.0"
+
 web3-eth-abi@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-eth-abi/-/web3-eth-abi-1.0.0-beta.35.tgz#2eb9c1c7c7233db04010defcb192293e0db250e6"
@@ -16713,6 +16892,15 @@ web3-eth-abi@1.0.0-beta.53:
     lodash "^4.17.11"
     web3-utils "1.0.0-beta.53"
 
+web3-eth-abi@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-eth-abi/-/web3-eth-abi-1.2.0.tgz#26b22261756ffbb3363bc37c1a6f5143bebb6469"
+  integrity sha512-FDuPq/tFeMg/D/f7cNSmvVYkMYb1z379gUUzSL8ZFtZrdHPkezq+lq/TmWmbCOMLYNXlhGJBzjGdLXRS4Upprg==
+  dependencies:
+    ethers "4.0.0-beta.3"
+    underscore "1.9.1"
+    web3-utils "1.2.0"
+
 web3-eth-abi@^1.0.0-beta.24:
   version "1.0.0-beta.55"
   resolved "https://registry.yarnpkg.com/web3-eth-abi/-/web3-eth-abi-1.0.0-beta.55.tgz#69250420039346105a3d0f899c0a8a53be926f97"
@@ -16817,6 +17005,20 @@ web3-eth-contract@1.0.0-beta.53:
     web3-providers "1.0.0-beta.53"
     web3-utils "1.0.0-beta.53"
 
+web3-eth-contract@^1.0.0-beta.53:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-eth-contract/-/web3-eth-contract-1.2.0.tgz#8d1c235c6624b5df428969ea2e9c26337095f6f0"
+  integrity sha512-hfjozNbfsoMeR3QklfkwU0Mqcw6YRD4y1Cb1ghGWNhFy2+/sbvKcQNPPJDKFTde22PRzGQBWyh/nb422Sux4bQ==
+  dependencies:
+    underscore "1.9.1"
+    web3-core "1.2.0"
+    web3-core-helpers "1.2.0"
+    web3-core-method "1.2.0"
+    web3-core-promievent "1.2.0"
+    web3-core-subscriptions "1.2.0"
+    web3-eth-abi "1.2.0"
+    web3-utils "1.2.0"
+
 web3-eth-ens@1.0.0-beta.37:
   version "1.0.0-beta.37"
   resolved "https://registry.yarnpkg.com/web3-eth-ens/-/web3-eth-ens-1.0.0-beta.37.tgz#714ecb01eb447ee3eb39b2b20a10ae96edb1f01f"
@@ -16856,6 +17058,14 @@ web3-eth-iban@1.0.0-beta.53:
     bn.js "4.11.8"
     web3-utils "1.0.0-beta.53"
 
+web3-eth-iban@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-eth-iban/-/web3-eth-iban-1.2.0.tgz#1bece9cebf817dca82fa03230203351f4f263866"
+  integrity sha512-6DzTx/cvIgEvxadhJjLGpsuDUARA4RKskNOuwWYUsUODcPb50rsfMmRkHhGtLss/sNXVE5gNjbT9rX3TDqy2tg==
+  dependencies:
+    bn.js "4.11.8"
+    web3-utils "1.2.0"
+
 web3-eth-personal@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-eth-personal/-/web3-eth-personal-1.0.0-beta.35.tgz#ecac95b7a53d04a567447062d5cae5f49879e89f"
@@ -17030,6 +17240,14 @@ web3-providers-http@1.0.0-beta.37:
     web3-core-helpers "1.0.0-beta.37"
     xhr2-cookies "1.1.0"
 
+web3-providers-http@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-providers-http/-/web3-providers-http-1.2.0.tgz#c6ebf9b6a23564439fa3c4a431cd6b405cc1ec0f"
+  integrity sha512-UrUn6JSz7NVCZ+0nZZtC4cmbl5JIi57w1flL1jN8jgkfdWDdErNvTkSwCt/QYdTQscMaUtWXDDOSAsVO6YC64g==
+  dependencies:
+    web3-core-helpers "1.2.0"
+    xhr2-cookies "1.1.0"
+
 web3-providers-ipc@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-providers-ipc/-/web3-providers-ipc-1.0.0-beta.35.tgz#031afeb10fade2ebb0ef2fb82f5e58c04be842d9"
@@ -17048,6 +17266,15 @@ web3-providers-ipc@1.0.0-beta.37:
     underscore "1.8.3"
     web3-core-helpers "1.0.0-beta.37"
 
+web3-providers-ipc@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-providers-ipc/-/web3-providers-ipc-1.2.0.tgz#98b8b8c9e77935dabfcf6d16e66c783f2429eac8"
+  integrity sha512-T2OSbiqu7+dahbGG5YFEQM5+FXdLVvaTCKmHXaQpw8IuL5hw7HELtyFOtHVudgDRyw0tJKxIfAiX/v2F1IL1fQ==
+  dependencies:
+    oboe "2.1.4"
+    underscore "1.9.1"
+    web3-core-helpers "1.2.0"
+
 web3-providers-ws@1.0.0-beta.35:
   version "1.0.0-beta.35"
   resolved "https://registry.yarnpkg.com/web3-providers-ws/-/web3-providers-ws-1.0.0-beta.35.tgz#5d38603fd450243a26aae0ff7f680644e77fa240"
@@ -17066,6 +17293,15 @@ web3-providers-ws@1.0.0-beta.37:
     web3-core-helpers "1.0.0-beta.37"
     websocket "git://github.com/frozeman/WebSocket-Node.git#browserifyCompatible"
 
+web3-providers-ws@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-providers-ws/-/web3-providers-ws-1.2.0.tgz#c45929f0d1e1743301372e6e604aab63e83f66e3"
+  integrity sha512-rnwGcCe6cev5A6eG5UBCQqPmkJVZMCrK+HN1AvUCco0OHD/0asGc9LuLbtkQIyznA6Lzetq/OOcaTOM4KeT11g==
+  dependencies:
+    underscore "1.9.1"
+    web3-core-helpers "1.2.0"
+    websocket "github:frozeman/WebSocket-Node#browserifyCompatible"
+
 web3-providers@1.0.0-beta.53:
   version "1.0.0-beta.53"
   resolved "https://registry.yarnpkg.com/web3-providers/-/web3-providers-1.0.0-beta.53.tgz#953b64f069623a41e0dd4d15c76ed5100d90ed43"
@@ -17157,6 +17393,19 @@ web3-utils@1.0.0-beta.55:
     randombytes "^2.1.0"
     utf8 "2.1.1"
 
+web3-utils@1.2.0, web3-utils@^1.0.0-beta.53:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/web3-utils/-/web3-utils-1.2.0.tgz#1f11b05d173b757d3f5ba32cb90b375a487d3bf0"
+  integrity sha512-tI1low8ICoaWU2c53cikH0rsksKuIskI2nycH5E5sEXxxl9/BOD3CeDDBFbxgNPQ+bpDevbR7gXNEDB7Ud4G9g==
+  dependencies:
+    bn.js "4.11.8"
+    eth-lib "0.2.7"
+    ethjs-unit "0.1.6"
+    number-to-bn "1.7.0"
+    randomhex "0.1.5"
+    underscore "1.9.1"
+    utf8 "3.0.0"
+
 web3@0.20.2:
   version "0.20.2"
   resolved "https://registry.yarnpkg.com/web3/-/web3-0.20.2.tgz#c54dac5fc0e377399c04c1a6ecbb12e4513278d6"
@@ -17436,6 +17685,16 @@ websocket@^1.0.26, websocket@^1.0.28:
     typedarray-to-buffer "^3.1.2"
     yaeti "^0.0.6"
 
+"websocket@github:frozeman/WebSocket-Node#browserifyCompatible":
+  version "1.0.26"
+  uid "6c72925e3f8aaaea8dc8450f97627e85263999f2"
+  resolved "https://codeload.github.com/frozeman/WebSocket-Node/tar.gz/6c72925e3f8aaaea8dc8450f97627e85263999f2"
+  dependencies:
+    debug "^2.2.0"
+    nan "^2.3.3"
+    typedarray-to-buffer "^3.1.2"
+    yaeti "^0.0.6"
+
 whatwg-fetch@2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.4.tgz#dde6a5df315f9d39991aa17621853d720b85566f"