update dependencies

migrations/2_deploy_hasher.js

@@ -2,7 +2,7 @@
 const path = require('path')
 
 const genContract = require('circomlib/src/mimcsponge_gencontract.js')
-const Artifactor = require('truffle-artifactor')
+const Artifactor = require('@truffle/artifactor')
 
 module.exports = function(deployer) {
   return deployer.then( async () =>  {

package.json

@@ -26,26 +26,24 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "@openzeppelin/contracts": "^2.3.0",
+    "@openzeppelin/contracts": "^2.4.0",
+    "@truffle/artifactor": "^4.0.38",
+    "@truffle/contract": "^4.0.39",
+    "@truffle/hdwallet-provider": "^1.0.24",
     "bn-chai": "^1.0.1",
-    "browserify": "^16.3.0",
+    "browserify": "^16.5.0",
     "chai": "^4.2.0",
     "chai-as-promised": "^7.1.1",
     "circom": "0.0.34",
-    "circomlib": "^0.0.18",
-    "dotenv": "^8.0.0",
-    "eslint": "^6.2.2",
-    "ganache-cli": "^6.4.5",
+    "circomlib": "^0.0.19",
+    "dotenv": "^8.2.0",
+    "eslint": "^6.6.0",
+    "ganache-cli": "^6.7.0",
     "snarkjs": "git+https://github.com/peppersec/snarkjs.git#869181cfaf7526fe8972073d31655493a04326d5",
-    "truffle": "^5.0.27",
-    "truffle-artifactor": "^4.0.23",
-    "truffle-contract": "^4.0.24",
-    "truffle-hdwallet-provider": "^1.0.14",
-    "web3": "^1.0.0-beta.55",
-    "web3-utils": "^1.0.0-beta.55",
+    "truffle": "^5.0.44",
+    "truffle-flattener": "^1.4.2",
+    "web3": "^1.2.2",
+    "web3-utils": "^1.2.2",
     "websnark": "git+https://github.com/peppersec/websnark.git#c254b5962287b788081be1047fa0041c2885b39f"
-  },
-  "devDependencies": {
-    "truffle-flattener": "^1.4.0"
   }
 }

truffle-config.js

@@ -1,5 +1,5 @@
 require('dotenv').config()
-const HDWalletProvider = require('truffle-hdwallet-provider')
+const HDWalletProvider = require('@truffle/hdwallet-provider')
 const utils = require('web3-utils')
 // const infuraKey = "fj4jll3k.....";
 //