4 files changed, 35 insertions, 8 deletions
diff --git a/packages/web3-wrapper/CHANGELOG.json b/packages/web3-wrapper/CHANGELOG.json
index 1ab2acafc..7261dd474 100644
--- a/packages/web3-wrapper/CHANGELOG.json
+++ b/packages/web3-wrapper/CHANGELOG.json
@@ -1,5 +1,23 @@
 [
     {
+        "timestamp": 1538475601,
+        "version": "3.0.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "timestamp": 1538157789,
+        "version": "3.0.2",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
         "timestamp": 1537907159,
         "version": "3.0.1",
         "changes": [
diff --git a/packages/web3-wrapper/CHANGELOG.md b/packages/web3-wrapper/CHANGELOG.md
index 1c592d22e..05e6a998b 100644
--- a/packages/web3-wrapper/CHANGELOG.md
+++ b/packages/web3-wrapper/CHANGELOG.md
@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v3.0.3 - _October 2, 2018_
+
+    * Dependencies updated
+
+## v3.0.2 - _September 28, 2018_
+
+    * Dependencies updated
+
 ## v3.0.1 - _September 25, 2018_
 
     * Dependencies updated
diff --git a/packages/web3-wrapper/package.json b/packages/web3-wrapper/package.json
index 4c6e545a9..5b5c0ec5b 100644
--- a/packages/web3-wrapper/package.json
+++ b/packages/web3-wrapper/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@0xproject/web3-wrapper",
-    "version": "3.0.1",
+    "version": "3.0.2",
     "engines": {
         "node": ">=6.12"
     },
@@ -9,6 +9,7 @@
     "types": "lib/src/index.d.ts",
     "scripts": {
         "build": "tsc -b",
+        "build:ci": "yarn build",
         "clean": "shx rm -rf lib generated_docs",
         "lint": "tslint --project .",
         "test": "yarn run_mocha",
@@ -53,11 +54,11 @@
         "typescript": "3.0.1"
     },
     "dependencies": {
-        "@0xproject/assert": "^1.0.11",
-        "@0xproject/json-schemas": "^1.0.4",
-        "@0xproject/typescript-typings": "^2.0.2",
-        "@0xproject/utils": "^1.0.11",
-        "ethereum-types": "^1.0.8",
+        "@0xproject/assert": "^1.0.12",
+        "@0xproject/json-schemas": "^1.0.5",
+        "@0xproject/typescript-typings": "^3.0.0",
+        "@0xproject/utils": "^2.0.0",
+        "ethereum-types": "^1.0.9",
         "ethereumjs-util": "^5.1.1",
         "ethers": "4.0.0-beta.14",
         "lodash": "^4.17.5"
diff --git a/packages/web3-wrapper/src/utils.ts b/packages/web3-wrapper/src/utils.ts
index 01605dc9a..0b568aac5 100644
--- a/packages/web3-wrapper/src/utils.ts
+++ b/packages/web3-wrapper/src/utils.ts
@@ -37,7 +37,7 @@ export const utils = {
         const hexBase = 16;
         const valueHex = valueBigNumber.toString(hexBase);
 
-        return valueBigNumber.lessThan(0) ? '-0x' + valueHex.substr(1) : '0x' + valueHex;
+        return valueBigNumber.lessThan(0) ? `-0x${valueHex.substr(1)}` : `0x${valueHex}`;
     },
     numberToHex(value: number): string {
         if (!isFinite(value) && !utils.isHexStrict(value)) {
@@ -48,7 +48,7 @@ export const utils = {
         const hexBase = 16;
         const result = valueBigNumber.toString(hexBase);
 
-        return valueBigNumber.lt(0) ? '-0x' + result.substr(1) : '0x' + result;
+        return valueBigNumber.lt(0) ? `-0x${result.substr(1)}` : `0x${result}`;
     },
     isHexStrict(hex: string | number): boolean {
         return (