diff --git a/package-lock.json b/package-lock.json
index 81ccb81..f3abf43 100644
--- a/package-lock.json
+++ b/package-lock.json
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       "integrity": "sha512-6w+3tHbM87WnSWnENBUvA2pxJPLhQUg5LKwUQHq3r+XPhIM+Gh2R5ycbwPCyuGbNg+lPgdcnQUhuC02kJCvffQ==",
+      "dev": true,
       "requires": {
         "errno": "~0.1.7"
       }
@@ -8225,6 +8058,7 @@
       "version": "2.1.0",
       "resolved": "http://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
       "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
+      "dev": true,
       "requires": {
         "string-width": "^1.0.1",
         "strip-ansi": "^3.0.1"
@@ -8233,12 +8067,14 @@
         "ansi-regex": {
           "version": "2.1.1",
           "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
-          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8="
+          "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+          "dev": true
         },
         "is-fullwidth-code-point": {
           "version": "1.0.0",
           "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
           "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
+          "dev": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -8247,6 +8083,7 @@
           "version": "1.0.2",
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
           "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
+          "dev": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -8257,6 +8094,7 @@
           "version": "3.0.1",
           "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+          "dev": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -8269,11 +8107,13 @@
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
     },
     "ws": {
-      "version": "6.1.2",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-6.1.2.tgz",
-      "integrity": "sha512-rfUqzvz0WxmSXtJpPMX2EeASXabOrSMk1ruMOV3JBTBjo4ac2lDjGGsbQSyxj8Odhw5fBib8ZKEjDNvgouNKYw==",
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.3.tgz",
+      "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
       "requires": {
-        "async-limiter": "~1.0.0"
+        "async-limiter": "~1.0.0",
+        "safe-buffer": "~5.1.0",
+        "ultron": "~1.1.0"
       }
     },
     "xhr": {
@@ -8330,7 +8170,8 @@
     "y18n": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.0.tgz",
-      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w=="
+      "integrity": "sha512-r9S/ZyXu/Xu9q1tYlpsLIsa3EeLXXk0VwlxqTcFRfg9EhMW+17kbt9G0NrgCmhGb5vT2hyhJZLfDGx+7+5Uj/w==",
+      "dev": true
     },
     "yaeti": {
       "version": "0.0.6",
@@ -8340,12 +8181,14 @@
     "yallist": {
       "version": "3.0.3",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.3.tgz",
-      "integrity": "sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A=="
+      "integrity": "sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==",
+      "dev": true
     },
     "yargs": {
       "version": "12.0.5",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.5.tgz",
       "integrity": "sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==",
+      "dev": true,
       "requires": {
         "cliui": "^4.0.0",
         "decamelize": "^1.2.0",
@@ -8365,6 +8208,7 @@
       "version": "11.1.1",
       "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
       "integrity": "sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==",
+      "dev": true,
       "requires": {
         "camelcase": "^5.0.0",
         "decamelize": "^1.2.0"
diff --git a/package.json b/package.json
index 68e5117..5a7d837 100644
--- a/package.json
+++ b/package.json
@@ -54,36 +54,30 @@
     "@oceanprotocol/keeper-contracts": "~0.5.1",
     "@oceanprotocol/secret-store-client": "~0.0.14",
     "bignumber.js": "^8.0.1",
-    "eth-crypto": "^1.3.2",
-    "eth-ecies": "^1.0.3",
     "ethereumjs-util": "^6.0.0",
-    "jsonwebtoken": "^8.4.0",
     "node-fetch": "^2.3.0",
     "uuid": "^3.3.2",
-    "web3": "1.0.0-beta.36",
-    "web3-utils": "1.0.0-beta.36",
+    "web3": "1.0.0-beta.37",
+    "web3-utils": "1.0.0-beta.37",
     "whatwg-url": "^7.0.0"
   },
   "devDependencies": {
     "@types/chai": "^4.1.7",
     "@types/mocha": "^5.2.5",
-    "@types/node": "^10.12.15",
+    "@types/node": "^10.12.17",
     "chai": "^4.2.0",
     "cross-env": "^5.2.0",
     "mocha": "^5.2.0",
     "nyc": "^13.1.0",
-    "rollup": "^0.68.0",
     "source-map-support": "^0.5.9",
-    "truffle-hdwallet-provider": "^1.0.0-web3one.4",
+    "truffle-hdwallet-provider": "^1.0.0",
     "ts-node": "^7.0.1",
-    "tslint": "^5.11.0",
+    "tslint": "^5.12.0",
     "typedoc": "^0.13.0",
     "typescript": "^3.2.2",
-    "uglify-js": "^3.4.9",
     "uglifyjs-webpack-plugin": "^2.0.1",
     "webpack": "^4.27.1",
     "webpack-cli": "^3.1.2",
-    "webpack-concat-plugin": "^3.0.0",
     "webpack-merge": "^4.1.5"
   }
 }
diff --git a/src/squid.ts b/src/squid.ts
index 5e93104..cef6c63 100644
--- a/src/squid.ts
+++ b/src/squid.ts
@@ -1,14 +1,14 @@
 import Account from "./ocean/Account"
+import DID from "./ocean/DID"
+import IdGenerator from "./ocean/IdGenerator"
 import Ocean from "./ocean/Ocean"
 import ServiceAgreement from "./ocean/ServiceAgreements/ServiceAgreement"
 import ServiceAgreementTemplate from "./ocean/ServiceAgreements/ServiceAgreementTemplate"
 import Access from "./ocean/ServiceAgreements/Templates/Access"
 import FitchainCompute from "./ocean/ServiceAgreements/Templates/FitchainCompute"
+import SecretStoreProvider from "./secretstore/SecretStoreProvider"
 import Logger from "./utils/Logger"
 import WebServiceConnectorProvider from "./utils/WebServiceConnectorProvider"
-import SecretStoreProvider from "./secretstore/SecretStoreProvider"
-import IdGenerator from "./ocean/IdGenerator"
-import DID from './ocean/DID'
 
 import EventListener from "./keeper/EventListener"