diff --git a/packages/protocol/package.json b/packages/protocol/package.json
index f0d8ede82..e176b400a 100644
--- a/packages/protocol/package.json
+++ b/packages/protocol/package.json
@@ -12,7 +12,7 @@
     "openzeppelin-solidity": "2.3.0"
   },
   "devDependencies": {
-    "@0x/sol-coverage": "^3.0.0",
+    "@0x/sol-coverage": "^4.0.3",
     "@0x/sol-profiler": "^3.1.2",
     "@0x/sol-trace": "^2.0.8",
     "@0x/subproviders": "^5.0.1",
diff --git a/yarn.lock b/yarn.lock
index 225f5e958..7f4f281c0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -13,6 +13,17 @@
     lodash "^4.17.11"
     valid-url "^1.0.9"
 
+"@0x/assert@^3.0.3":
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/@0x/assert/-/assert-3.0.3.tgz#18f92aa4e5d87824259b3ddd1cc1882b59f29e8e"
+  integrity sha512-Yvu701gtykj44ggWe66E2sje4v9odBrO9uAoPwEj3EfN7Kk/AXJEthyWSZVGXQvj7MaFlAElq1Uw8VfzF/gtqA==
+  dependencies:
+    "@0x/json-schemas" "^5.0.3"
+    "@0x/typescript-typings" "^5.0.1"
+    "@0x/utils" "^5.1.2"
+    lodash "^4.17.11"
+    valid-url "^1.0.9"
+
 "@0x/dev-utils@^2.3.3":
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/@0x/dev-utils/-/dev-utils-2.3.3.tgz#9b6df00fea357fa6da02b35ca93fc89d100e1992"
@@ -28,6 +39,25 @@
     ethereum-types "^2.1.6"
     lodash "^4.17.11"
 
+"@0x/dev-utils@^3.1.0":
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/@0x/dev-utils/-/dev-utils-3.1.0.tgz#a343f36aa819b2e748fe9946645fd959ebff843c"
+  integrity sha512-Xy2ub6gxsIu5MsWdmFpxsMaIg5o33lRwzeZshdfPLqGKx6GVM2Kk4GTWUiBrukpoUA8LvyV5nW8vzOrZm0UJfA==
+  dependencies:
+    "@0x/subproviders" "^6.0.3"
+    "@0x/types" "^3.1.1"
+    "@0x/typescript-typings" "^5.0.1"
+    "@0x/utils" "^5.1.2"
+    "@0x/web3-wrapper" "^7.0.3"
+    "@types/web3-provider-engine" "^14.0.0"
+    chai "^4.0.1"
+    chai-as-promised "^7.1.0"
+    chai-bignumber "^3.0.0"
+    dirty-chai "^2.0.1"
+    ethereum-types "^3.0.0"
+    lodash "^4.17.11"
+    web3-provider-engine "14.0.6"
+
 "@0x/json-schemas@^4.0.2":
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/@0x/json-schemas/-/json-schemas-4.0.2.tgz#6f7c1dcde04d3acc3e8ca2f24177b9705c10e772"
@@ -38,6 +68,16 @@
     jsonschema "^1.2.0"
     lodash.values "^4.3.0"
 
+"@0x/json-schemas@^5.0.3":
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/@0x/json-schemas/-/json-schemas-5.0.3.tgz#8804d20eb13f2551146c399b83cb5e1597205bee"
+  integrity sha512-B8mAyEb2bPrWHdaIpQjODGRmiH+gCAxadppWibpa36fkHF+4c9FNJCFqRE98Eg5w/IYTOj7JkrsRnkA3Ux1ltQ==
+  dependencies:
+    "@0x/typescript-typings" "^5.0.1"
+    "@types/node" "*"
+    jsonschema "^1.2.0"
+    lodash.values "^4.3.0"
+
 "@0x/sol-compiler@^3.1.15":
   version "3.1.15"
   resolved "https://registry.yarnpkg.com/@0x/sol-compiler/-/sol-compiler-3.1.15.tgz#aaaad55008dddd69ad1e3226aa4a2832e0dd13b3"
@@ -65,16 +105,43 @@
     web3-eth-abi "^1.0.0-beta.24"
     yargs "^10.0.3"
 
-"@0x/sol-coverage@^3.0.0":
-  version "3.0.12"
-  resolved "https://registry.yarnpkg.com/@0x/sol-coverage/-/sol-coverage-3.0.12.tgz#4ca602495f7bcc4f045854850cd7f20fdf64e984"
-  integrity sha512-V4Iq8LU8HWNctVCt+gMHKcZ0moiawpna7bd3SWQuiQIig0iNpXBBCQl9SEIwpboTcv4Xhzo4cZuCGsWwKAQSpw==
+"@0x/sol-compiler@^4.0.3":
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/@0x/sol-compiler/-/sol-compiler-4.0.3.tgz#8e44c352071d2fff5022807cffd011ff274a8857"
+  integrity sha512-Aj8PQz5yOqo57ciHeL3Da4v4Dkn+JB/t+gBaqIHkrk7IvJ/d/AjPB3LKpGmqRT/AHVljYt3XbWokKxI7gZYafQ==
+  dependencies:
+    "@0x/assert" "^3.0.3"
+    "@0x/json-schemas" "^5.0.3"
+    "@0x/sol-resolver" "^3.0.2"
+    "@0x/types" "^3.1.1"
+    "@0x/typescript-typings" "^5.0.1"
+    "@0x/utils" "^5.1.2"
+    "@0x/web3-wrapper" "^7.0.3"
+    "@types/yargs" "^11.0.0"
+    chalk "^2.3.0"
+    chokidar "^3.0.2"
+    ethereum-types "^3.0.0"
+    ethereumjs-util "^5.1.1"
+    lodash "^4.17.11"
+    mkdirp "^0.5.1"
+    pluralize "^7.0.0"
+    require-from-string "^2.0.1"
+    semver "5.5.0"
+    solc "^0.5.5"
+    source-map-support "^0.5.0"
+    web3-eth-abi "^1.0.0-beta.24"
+    yargs "^10.0.3"
+
+"@0x/sol-coverage@^4.0.3":
+  version "4.0.3"
+  resolved "https://registry.yarnpkg.com/@0x/sol-coverage/-/sol-coverage-4.0.3.tgz#90dbc99c451c61afbaef4470e3adbaadfb683934"
+  integrity sha512-OYncX3q7GVvQr7xpkPxeyQeIEYwPdfVjlvyHrn5640kFeIOEPrVqXjQVH3uwJ106jI+WJ/NKUdpCwzR45XASmw==
   dependencies:
-    "@0x/sol-tracing-utils" "^6.0.19"
-    "@0x/subproviders" "^5.0.4"
-    "@0x/typescript-typings" "^4.3.0"
+    "@0x/sol-tracing-utils" "^7.0.3"
+    "@0x/subproviders" "^6.0.3"
+    "@0x/typescript-typings" "^5.0.1"
     "@types/minimatch" "^3.0.3"
-    ethereum-types "^2.1.6"
+    ethereum-types "^3.0.0"
     lodash "^4.17.11"
     minimatch "^3.0.4"
     web3-provider-engine "14.0.6"
@@ -102,6 +169,15 @@
     "@0x/typescript-typings" "^4.3.0"
     lodash "^4.17.11"
 
+"@0x/sol-resolver@^3.0.2":
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/@0x/sol-resolver/-/sol-resolver-3.0.2.tgz#2f89df2f049d5ea8501ee1fc2a1d0866a0b3c761"
+  integrity sha512-+FseY6gmifzrrtnHt70hNezmCDavVd69MqT/r2uyxXtgz2F3oegkPBTBYo4/sxrdiSA+2tYFcqGHNiMDtx6ELA==
+  dependencies:
+    "@0x/types" "^3.1.1"
+    "@0x/typescript-typings" "^5.0.1"
+    lodash "^4.17.11"
+
 "@0x/sol-trace@^2.0.8":
   version "2.0.20"
   resolved "https://registry.yarnpkg.com/@0x/sol-trace/-/sol-trace-2.0.20.tgz#4c14af3f5c30ab50882e9667926ca9533446711d"
@@ -144,6 +220,33 @@
     solc "^0.5.5"
     solidity-parser-antlr "^0.4.2"
 
+"@0x/sol-tracing-utils@^7.0.3":
+  version "7.0.3"
+  resolved "https://registry.yarnpkg.com/@0x/sol-tracing-utils/-/sol-tracing-utils-7.0.3.tgz#33de0c07466b1faed2e7b3c9ffdf7fe3fd24315a"
+  integrity sha512-7LLAb+7EYIuT92xb84Ta560vbSs7EnbomgWztDeKK9HvQ13rRo0XPeu+TlsTsVbgPxVDba1rw30Ax0r9vmLdJw==
+  dependencies:
+    "@0x/dev-utils" "^3.1.0"
+    "@0x/sol-compiler" "^4.0.3"
+    "@0x/sol-resolver" "^3.0.2"
+    "@0x/subproviders" "^6.0.3"
+    "@0x/typescript-typings" "^5.0.1"
+    "@0x/utils" "^5.1.2"
+    "@0x/web3-wrapper" "^7.0.3"
+    "@types/solidity-parser-antlr" "^0.2.3"
+    chalk "^2.3.0"
+    ethereum-types "^3.0.0"
+    ethereumjs-util "^5.1.1"
+    ethers "~4.0.4"
+    glob "^7.1.2"
+    istanbul "^0.4.5"
+    lodash "^4.17.11"
+    loglevel "^1.6.1"
+    mkdirp "^0.5.1"
+    rimraf "^2.6.2"
+    semaphore-async-await "^1.5.1"
+    solc "^0.5.5"
+    solidity-parser-antlr "^0.4.2"
+
 "@0x/subproviders@^5.0.1", "@0x/subproviders@^5.0.4":
   version "5.0.4"
   resolved "https://registry.yarnpkg.com/@0x/subproviders/-/subproviders-5.0.4.tgz#e4b165634ef6a50c4bd41baacf0dbd2a9390c2f8"
@@ -172,6 +275,34 @@
   optionalDependencies:
     "@ledgerhq/hw-transport-node-hid" "^4.3.0"
 
+"@0x/subproviders@^6.0.3":
+  version "6.0.3"
+  resolved "https://registry.yarnpkg.com/@0x/subproviders/-/subproviders-6.0.3.tgz#5d88dc15efab2df6463de5e48706396645c2b5ed"
+  integrity sha512-sPw9I1rv/JMXxkf6c7xZVbwSMB0RizsuqG45NSHaIwPoWPh3/+IkmIgRv4M9nWignDu/q+F8v0D1ww3aIGMX0Q==
+  dependencies:
+    "@0x/assert" "^3.0.3"
+    "@0x/types" "^3.1.1"
+    "@0x/typescript-typings" "^5.0.1"
+    "@0x/utils" "^5.1.2"
+    "@0x/web3-wrapper" "^7.0.3"
+    "@ledgerhq/hw-app-eth" "^4.3.0"
+    "@ledgerhq/hw-transport-u2f" "4.24.0"
+    "@types/hdkey" "^0.7.0"
+    "@types/web3-provider-engine" "^14.0.0"
+    bip39 "^2.5.0"
+    bn.js "^4.11.8"
+    ethereum-types "^3.0.0"
+    ethereumjs-tx "^1.3.5"
+    ethereumjs-util "^5.1.1"
+    ganache-core "^2.6.0"
+    hdkey "^0.7.1"
+    json-rpc-error "2.0.0"
+    lodash "^4.17.11"
+    semaphore-async-await "^1.5.1"
+    web3-provider-engine "14.0.6"
+  optionalDependencies:
+    "@ledgerhq/hw-transport-node-hid" "^4.3.0"
+
 "@0x/types@^2.4.3":
   version "2.4.3"
   resolved "https://registry.yarnpkg.com/@0x/types/-/types-2.4.3.tgz#ea014889789e9013fdf48ce97b79f2c016e10fb3"
@@ -181,6 +312,15 @@
     bignumber.js "~8.0.2"
     ethereum-types "^2.1.6"
 
+"@0x/types@^3.1.1":
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/@0x/types/-/types-3.1.1.tgz#b20ca76e9516201b9c27621f941696f41ffc9fac"
+  integrity sha512-+TQmzH+chWeDWpc+Lce3/q4X2UEHFfAwZcWrV7tEQ5EVAJvph7gpKawRW2XRsmHeQDSHBmiiBdSZ8Rc/OAjvlQ==
+  dependencies:
+    "@types/node" "*"
+    bignumber.js "~9.0.0"
+    ethereum-types "^3.0.0"
+
 "@0x/typescript-typings@^4.3.0":
   version "4.3.0"
   resolved "https://registry.yarnpkg.com/@0x/typescript-typings/-/typescript-typings-4.3.0.tgz#4813a996ac5101841d1c22f4aa1738ab56168857"
@@ -192,6 +332,17 @@
     ethereum-types "^2.1.6"
     popper.js "1.14.3"
 
+"@0x/typescript-typings@^5.0.1":
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/@0x/typescript-typings/-/typescript-typings-5.0.1.tgz#031e291cc506ecd26d3fe10adf618f4f51ff1510"
+  integrity sha512-zSA39URHkFnL16WD30VMa8wL8va0Khpx9APHffdPWpBOr9SUPdADtae5HO4iNCYvSgo3mrtPlKID2nIqREIHOQ==
+  dependencies:
+    "@types/bn.js" "^4.11.0"
+    "@types/react" "*"
+    bignumber.js "~9.0.0"
+    ethereum-types "^3.0.0"
+    popper.js "1.14.3"
+
 "@0x/utils@^4.5.2":
   version "4.5.2"
   resolved "https://registry.yarnpkg.com/@0x/utils/-/utils-4.5.2.tgz#6cc89f2d0dda341e0fb4e76049a35abfb67a4ac5"
@@ -211,6 +362,25 @@
     js-sha3 "^0.7.0"
     lodash "^4.17.11"
 
+"@0x/utils@^5.1.2":
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/@0x/utils/-/utils-5.1.2.tgz#defc545a42343729c9bf7252f0b7413d7ba47694"
+  integrity sha512-p5BZxs3krXwkjBY8hrmGLkLp4BziVQ6z4tRFIcWSR8C4ptAlZ4QfFL1zqK6O6/rbOsGj+JSIpqRRrxJr2Is6LQ==
+  dependencies:
+    "@0x/types" "^3.1.1"
+    "@0x/typescript-typings" "^5.0.1"
+    "@types/node" "*"
+    abortcontroller-polyfill "^1.1.9"
+    bignumber.js "~9.0.0"
+    chalk "^2.3.0"
+    detect-node "2.0.3"
+    ethereum-types "^3.0.0"
+    ethereumjs-util "^5.1.1"
+    ethers "~4.0.4"
+    isomorphic-fetch "2.2.1"
+    js-sha3 "^0.7.0"
+    lodash "^4.17.11"
+
 "@0x/web3-wrapper@^6.0.13":
   version "6.0.13"
   resolved "https://registry.yarnpkg.com/@0x/web3-wrapper/-/web3-wrapper-6.0.13.tgz#2e666221bd44ceebe02762028214d4aa41ad7247"
@@ -225,6 +395,20 @@
     ethers "~4.0.4"
     lodash "^4.17.11"
 
+"@0x/web3-wrapper@^7.0.3":
+  version "7.0.3"
+  resolved "https://registry.yarnpkg.com/@0x/web3-wrapper/-/web3-wrapper-7.0.3.tgz#b6015a820909b36e00115047ca1c0c693d56fff8"
+  integrity sha512-ocUhIz04KORg1Hu3j+w/pKgJ3VF6WiFhwN0VbZkMBggK2eIAYsb3VncLY5hl9g63bTxSk0l3GI5WFgGuxMMn6Q==
+  dependencies:
+    "@0x/assert" "^3.0.3"
+    "@0x/json-schemas" "^5.0.3"
+    "@0x/typescript-typings" "^5.0.1"
+    "@0x/utils" "^5.1.2"
+    ethereum-types "^3.0.0"
+    ethereumjs-util "^5.1.1"
+    ethers "~4.0.4"
+    lodash "^4.17.11"
+
 "@babel/cli@^7.4.3":
   version "7.7.5"
   resolved "https://registry.yarnpkg.com/@babel/cli/-/cli-7.7.5.tgz#25702cc65418efc06989af3727897b9f4c8690b6"
@@ -4175,7 +4359,7 @@ 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@*, bignumber.js@^9.0.0:
+bignumber.js@*, bignumber.js@^9.0.0, bignumber.js@~9.0.0:
   version "9.0.0"
   resolved "https://registry.yarnpkg.com/bignumber.js/-/bignumber.js-9.0.0.tgz#805880f84a329b5eac6e7cb6f8274b6d82bdf075"
   integrity sha512-t/OYhhJ2SD+YGBQcjY8GzzDHEk9f3nerxjtfa6tlMXfe7frs/WozhvCNoGvpM0P3bNf3Gq5ZRMlGr5f3r4/N8A==
@@ -4808,6 +4992,18 @@ cbor@^4.1.5:
     json-text-sequence "^0.1"
     nofilter "^1.0.3"
 
+chai-as-promised@^7.1.0:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/chai-as-promised/-/chai-as-promised-7.1.1.tgz#08645d825deb8696ee61725dbf590c012eb00ca0"
+  integrity sha512-azL6xMoi+uxu6z4rhWQ1jbdUhOMhis2PvscD/xjLqNMkv3BPPp2JyyuTHOrf9BOosGpNQ11v6BKv/g57RXbiaA==
+  dependencies:
+    check-error "^1.0.2"
+
+chai-bignumber@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/chai-bignumber/-/chai-bignumber-3.0.0.tgz#e90cf1f468355bbb11a9acd051222586cd2648a9"
+  integrity sha512-SubOtaSI2AILWTWe2j0c6i2yFT/f9J6UBjeVGDuwDiPLkF/U5+/eTWUE3sbCZ1KgcPF6UJsDVYbIxaYA097MQA==
+
 chai@^4.0.1, chai@^4.2.0:
   version "4.2.0"
   resolved "https://registry.yarnpkg.com/chai/-/chai-4.2.0.tgz#760aa72cf20e3795e84b12877ce0e83737aa29e5"
@@ -6150,6 +6346,11 @@ dir-glob@^3.0.0, dir-glob@^3.0.1:
   dependencies:
     path-type "^4.0.0"
 
+dirty-chai@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/dirty-chai/-/dirty-chai-2.0.1.tgz#6b2162ef17f7943589da840abc96e75bda01aff3"
+  integrity sha512-ys79pWKvDMowIDEPC6Fig8d5THiC0DJ2gmTeGzVAoEH18J8OzLud0Jh7I9IWg3NSk8x2UocznUuFmfHCXYZx9w==
+
 doctrine@1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/doctrine/-/doctrine-1.5.0.tgz#379dce730f6166f76cefa4e6707a159b02c5a6fa"
@@ -6922,6 +7123,14 @@ ethereum-types@^2.1.6:
     "@types/node" "*"
     bignumber.js "~8.0.2"
 
+ethereum-types@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/ethereum-types/-/ethereum-types-3.0.0.tgz#9fa3a98b8b9b64a0fab1864de7bc7fd7b1699fcd"
+  integrity sha512-jRSsiua+e4/89r7M3mqPcP1M2f3TgXxpVmWysy+7pEg2H4lwEQRWarbYfIpWp81NtxrcMQv5bMK+yR1MN4sDpg==
+  dependencies:
+    "@types/node" "*"
+    bignumber.js "~9.0.0"
+
 ethereumjs-abi@0.6.5:
   version "0.6.5"
   resolved "https://registry.yarnpkg.com/ethereumjs-abi/-/ethereumjs-abi-0.6.5.tgz#5a637ef16ab43473fa72a29ad90871405b3f5241"