chore: update yarn.lock

packages/abi-gen-wrappers/package.json

@@ -34,7 +34,7 @@
         "@0x/tslint-config": "^1.0.8",
         "@0x/utils": "^2.0.2",
         "@0x/web3-wrapper": "^3.0.3",
-        "ethereum-types": "^1.1.0",
+        "ethereum-types": "^1.0.11",
         "ethers": "~4.0.4",
         "lodash": "^4.17.5",
         "shx": "^0.2.2"

packages/instant/package.json

@@ -45,7 +45,7 @@
     "dependencies": {
         "@0x/asset-buyer": "^2.0.0",
         "@0x/types": "^1.1.4",
-        "@0x/typescript-typings": "^2.0.2",
+        "@0x/typescript-typings": "^3.0.2",
         "@0x/utils": "^2.0.2",
         "@0x/web3-wrapper": "^3.0.3",
         "ethereum-types": "^1.0.11",