diff --git a/package-lock.json b/package-lock.json
index b89c419..542617e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -152,6 +152,12 @@
       "integrity": "sha512-2Y8uPt0/jwjhQ6EiluT0XCri1Dbplr0ZxfFXUz+ye13gaqE8u5gL5ppao1JrUYr9cIip5S6MvQzBS7Kke7U9VA==",
       "dev": true
     },
+    "@types/estree": {
+      "version": "0.0.39",
+      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-0.0.39.tgz",
+      "integrity": "sha512-EYNwp3bU+98cpU4lAWYYL7Zz+2gryWH1qbdDTidVd6hkiR6weksdbMadyXKXNPEkQFhXM+hVO9ZygomHXp+AIw==",
+      "dev": true
+    },
     "@types/events": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/@types/events/-/events-1.2.0.tgz",
@@ -6033,6 +6039,16 @@
         "safe-buffer": "^5.1.1"
       }
     },
+    "rollup": {
+      "version": "0.67.3",
+      "resolved": "https://registry.npmjs.org/rollup/-/rollup-0.67.3.tgz",
+      "integrity": "sha512-TyNQCz97rKuVVbsKUTXfwIjV7UljWyTVd7cTMuE+aqlQ7WJslkYF5QaYGjMLR2BlQtUOO5CAxSVnpQ55iYp5jg==",
+      "dev": true,
+      "requires": {
+        "@types/estree": "0.0.39",
+        "@types/node": "*"
+      }
+    },
     "run-queue": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/run-queue/-/run-queue-1.0.3.tgz",
@@ -7039,6 +7055,30 @@
         }
       }
     },
+    "uglify-js": {
+      "version": "3.4.9",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.4.9.tgz",
+      "integrity": "sha512-8CJsbKOtEbnJsTyv6LE6m6ZKniqMiFWmm9sRbopbkGs3gMPPfd3Fh8iIA4Ykv5MgaTbqHr4BaoGLJLZNhsrW1Q==",
+      "dev": true,
+      "requires": {
+        "commander": "~2.17.1",
+        "source-map": "~0.6.1"
+      },
+      "dependencies": {
+        "commander": {
+          "version": "2.17.1",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
+          "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==",
+          "dev": true
+        },
+        "source-map": {
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+          "dev": true
+        }
+      }
+    },
     "uglifyjs-webpack-plugin": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/uglifyjs-webpack-plugin/-/uglifyjs-webpack-plugin-1.3.0.tgz",
diff --git a/package.json b/package.json
index 050a602..8a8c8de 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,13 @@
     "clean": "rm -rf ./dist/ ./doc/ ./coverage ./.nyc_output",
     "lint": "tslint -c tslint.json 'src/**/*.ts' 'test/**/*.ts'",
     "start": "npm link @oceanprotocol/keeper-contracts @oceanprotocol/secret-store-client && npm run build:watch",
-    "build": "npm run clean && npm run lint && tsc && npm run doc",
+    "build": "npm run clean && npm run lint && tsc && npm run build:all && npm run doc",
+    "build:all": "npm run build:es2015 && npm run build:esm && npm run build:cjs && npm run build:umd && npm run build:umd:min",
+    "build:es2015": "tsc --module es2015 --target es2015 --outDir dist/es2015",
+    "build:esm": "tsc --module es2015 --target es5 --outDir dist/esm",
+    "build:cjs": "tsc --module commonjs --target es5 --outDir dist/cjs",
+    "build:umd": "rollup dist/esm/squid.js --format umd --name squid --sourceMap --file dist/umd/squid.js",
+    "build:umd:min": "cd dist/umd && uglifyjs --compress --mangle --comments -o squid.min.js -- squid.js && gzip squid.min.js -c > squid.min.js.gz",
     "build:watch": "tsc -w",
     "doc": "typedoc --mode modules --out ./doc/ ./src/",
     "run": "ts-node",
@@ -68,10 +74,12 @@
     "chai": "^4.2.0",
     "mocha": "^5.2.0",
     "nyc": "^13.1.0",
+    "rollup": "^0.67.3",
     "source-map-support": "^0.5.9",
     "ts-node": "^7.0.1",
     "tslint": "^5.11.0",
     "typedoc": "^0.13.0",
-    "typescript": "^3.1.6"
+    "typescript": "^3.1.6",
+    "uglify-js": "^3.4.9"
   }
 }
diff --git a/src/ocean/IdGenerator.ts b/src/ocean/IdGenerator.ts
index 974a2dc..a740f6d 100644
--- a/src/ocean/IdGenerator.ts
+++ b/src/ocean/IdGenerator.ts
@@ -1,4 +1,4 @@
-import * as v4 from "uuid/v4"
+import { v4 } from "uuid"
 
 export default class IdGenerator {
     public static generateId(): string {
diff --git a/tsconfig.json b/tsconfig.json
index 872cfe0..2861ec0 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,6 +1,7 @@
 {
   "compilerOptions": {
     "resolveJsonModule": true,
+    "moduleResolution": "node",
     "lib": [
       "es6",
       "es7"