diff --git a/package-lock.json b/package-lock.json
index ad6de66..6e54122 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "rif-wallet-services",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "rif-wallet-services",
-      "version": "1.0.5",
+      "version": "1.0.6",
       "license": "MIT",
       "dependencies": {
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@@ -14,12 +14,12 @@
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+        "socket.io": "^4.7.5",
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@@ -43,13 +43,18 @@
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         "rimraf": "^3.0.2",
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         "ts-node": "^10.9.1",
         "typescript": "~4.8.3"
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+    },
     "node_modules/@ampproject/remapping": {
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         "debug": "~4.3.1",
-        "engine.io-parser": "~5.0.3",
-        "ws": "~8.2.3",
+        "engine.io-parser": "~5.2.1",
+        "ws": "~8.17.1",
         "xmlhttprequest-ssl": "~2.0.0"
       }
     },
-    "node_modules/engine.io-client/node_modules/ws": {
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-      "resolved": "https://registry.npmjs.org/ws/-/ws-8.2.3.tgz",
-      "integrity": "sha512-wBuoj1BDpC6ZQ1B7DWQBYVLphPWkm8i9Y0/3YdHjHKHiohOJ1ws+3OccDWtH+PoC9DZD5WOTrJvNbWvjS6JWaA==",
-      "dev": true,
-      "engines": {
-        "node": ">=10.0.0"
-      },
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-        "utf-8-validate": "^5.0.2"
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-        "bufferutil": {
-          "optional": true
-        },
-        "utf-8-validate": {
-          "optional": true
-        }
-      }
-    },
     "node_modules/engine.io-parser": {
-      "version": "5.0.6",
-      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-5.0.6.tgz",
-      "integrity": "sha512-tjuoZDMAdEhVnSFleYPCtdL2GXwVTGtNjoeJd9IhIG3C1xs9uwxqRNEu5WpnDZCaozwVlK/nuQhpodhXSIMaxw==",
-      "engines": {
-        "node": ">=10.0.0"
-      }
-    },
-    "node_modules/engine.io/node_modules/ws": {
-      "version": "8.11.0",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-8.11.0.tgz",
-      "integrity": "sha512-HPG3wQd9sNQoT9xHyNCXoDUa+Xw/VevmY9FoHyQ+g+rrMn4j6FB4np7Z0OhdTgjx6MgQLK7jwSy1YecU1+4Asg==",
+      "version": "5.2.3",
+      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-5.2.3.tgz",
+      "integrity": "sha512-HqD3yTBfnBxIrbnM1DoD6Pcq8NECnh8d4As1Qgh0z5Gg3jRRIqijury0CL3ghu/edArpUYiYqQiDUQBIs4np3Q==",
       "engines": {
         "node": ">=10.0.0"
-      },
-      "peerDependencies": {
-        "bufferutil": "^4.0.1",
-        "utf-8-validate": "^5.0.2"
-      },
-      "peerDependenciesMeta": {
-        "bufferutil": {
-          "optional": true
-        },
-        "utf-8-validate": {
-          "optional": true
-        }
       }
     },
     "node_modules/error-ex": {
@@ -4309,13 +3585,13 @@
       }
     },
     "node_modules/ethers": {
-      "version": "5.7.2",
-      "resolved": "https://registry.npmjs.org/ethers/-/ethers-5.7.2.tgz",
-      "integrity": "sha512-wswUsmWo1aOK8rR7DIKiWSw9DbLWe6x98Jrn8wcTflTVvaXhAMaB5zGAXy0GYQEQp9iO1iSHWVyARQm11zUtyg==",
+      "version": "6.13.1",
+      "resolved": "https://registry.npmjs.org/ethers/-/ethers-6.13.1.tgz",
+      "integrity": "sha512-hdJ2HOxg/xx97Lm9HdCWk949BfYqYWpyw4//78SiwOLgASyfrNszfMUNB2joKjvGUdwhHfaiMMFFwacVVoLR9A==",
       "funding": [
         {
           "type": "individual",
-          "url": "https://gitcoin.co/grants/13/ethersjs-complete-simple-and-tiny-2"
+          "url": "https://github.com/sponsors/ethers-io/"
         },
         {
           "type": "individual",
@@ -4323,38 +3599,23 @@
         }
       ],
       "dependencies": {
-        "@ethersproject/abi": "5.7.0",
-        "@ethersproject/abstract-provider": "5.7.0",
-        "@ethersproject/abstract-signer": "5.7.0",
-        "@ethersproject/address": "5.7.0",
-        "@ethersproject/base64": "5.7.0",
-        "@ethersproject/basex": "5.7.0",
-        "@ethersproject/bignumber": "5.7.0",
-        "@ethersproject/bytes": "5.7.0",
-        "@ethersproject/constants": "5.7.0",
-        "@ethersproject/contracts": "5.7.0",
-        "@ethersproject/hash": "5.7.0",
-        "@ethersproject/hdnode": "5.7.0",
-        "@ethersproject/json-wallets": "5.7.0",
-        "@ethersproject/keccak256": "5.7.0",
-        "@ethersproject/logger": "5.7.0",
-        "@ethersproject/networks": "5.7.1",
-        "@ethersproject/pbkdf2": "5.7.0",
-        "@ethersproject/properties": "5.7.0",
-        "@ethersproject/providers": "5.7.2",
-        "@ethersproject/random": "5.7.0",
-        "@ethersproject/rlp": "5.7.0",
-        "@ethersproject/sha2": "5.7.0",
-        "@ethersproject/signing-key": "5.7.0",
-        "@ethersproject/solidity": "5.7.0",
-        "@ethersproject/strings": "5.7.0",
-        "@ethersproject/transactions": "5.7.0",
-        "@ethersproject/units": "5.7.0",
-        "@ethersproject/wallet": "5.7.0",
-        "@ethersproject/web": "5.7.1",
-        "@ethersproject/wordlists": "5.7.0"
+        "@adraffy/ens-normalize": "1.10.1",
+        "@noble/curves": "1.2.0",
+        "@noble/hashes": "1.3.2",
+        "@types/node": "18.15.13",
+        "aes-js": "4.0.0-beta.5",
+        "tslib": "2.4.0",
+        "ws": "8.17.1"
+      },
+      "engines": {
+        "node": ">=14.0.0"
       }
     },
+    "node_modules/ethers/node_modules/tslib": {
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
+      "integrity": "sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ=="
+    },
     "node_modules/execa": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/execa/-/execa-5.1.1.tgz",
@@ -4633,9 +3894,9 @@
       "integrity": "sha512-0Zt+s3L7Vf1biwWZ29aARiVYLx7iMGnEUl9x33fbB/j3jR81u/O2LbqK+Bm1CDSNDKVtJ/YjwY7TUd5SkeLQLw=="
     },
     "node_modules/fill-range": {
-      "version": "7.0.1",
-      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.0.1.tgz",
-      "integrity": "sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==",
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
+      "integrity": "sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg==",
       "dev": true,
       "dependencies": {
         "to-regex-range": "^5.0.1"
@@ -5073,15 +4334,6 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
-    "node_modules/hash.js": {
-      "version": "1.1.7",
-      "resolved": "https://registry.npmjs.org/hash.js/-/hash.js-1.1.7.tgz",
-      "integrity": "sha512-taOaskGt4z4SOANNseOviYDvjEJinIkRgmp7LbKP2YTTmVxWBl87s/uzK9r+44BclBSp2X7K1hqeNfz9JbBeXA==",
-      "dependencies": {
-        "inherits": "^2.0.3",
-        "minimalistic-assert": "^1.0.1"
-      }
-    },
     "node_modules/hexoid": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/hexoid/-/hexoid-1.0.0.tgz",
@@ -5091,16 +4343,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/hmac-drbg": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/hmac-drbg/-/hmac-drbg-1.0.1.tgz",
-      "integrity": "sha512-Tti3gMqLdZfhOQY1Mzf/AanLiqh1WTiJgEj26ZuYQ9fbkLomzGchCws4FyrSd4VkpBfiNhaE1On+lOz894jvXg==",
-      "dependencies": {
-        "hash.js": "^1.0.3",
-        "minimalistic-assert": "^1.0.0",
-        "minimalistic-crypto-utils": "^1.0.1"
-      }
-    },
     "node_modules/html-escaper": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/html-escaper/-/html-escaper-2.0.2.tgz",
@@ -6560,11 +5802,6 @@
         "url": "https://opencollective.com/js-sdsl"
       }
     },
-    "node_modules/js-sha3": {
-      "version": "0.8.0",
-      "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.8.0.tgz",
-      "integrity": "sha512-gF1cRrHhIzNfToc802P800N8PpXS+evLLXfsVpowqmAFR9uwbi89WvXg2QspOmXL8QL86J4T1EpFu+yUkwJY3Q=="
-    },
     "node_modules/js-tokens": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
@@ -6843,16 +6080,6 @@
         "node": ">=6"
       }
     },
-    "node_modules/minimalistic-assert": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/minimalistic-assert/-/minimalistic-assert-1.0.1.tgz",
-      "integrity": "sha512-UtJcAD4yEaGtjPezWuO9wC4nwUnVH/8/Im3yEHQP4b67cXlD/Qr9hdITCU1xDbSEXg2XKNaP8jsReV7vQd00/A=="
-    },
-    "node_modules/minimalistic-crypto-utils": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/minimalistic-crypto-utils/-/minimalistic-crypto-utils-1.0.1.tgz",
-      "integrity": "sha512-JIYlbt6g8i5jKfJ3xz7rF0LXmv2TkDxBLUkiBeZ7bAx4GnnNMr8xFpGnOxn6GhTEHx3SjRrZEoU+j04prX1ktg=="
-    },
     "node_modules/minimatch": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
@@ -7735,11 +6962,6 @@
       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
     },
-    "node_modules/scrypt-js": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-3.0.1.tgz",
-      "integrity": "sha512-cdwTTnqPu0Hyvf5in5asVdZocVDTNRmR7XEcJuIzMjJeSHybHl7vpB66AzwTaIg6CLSbtjcxc8fqcySfnTkccA=="
-    },
     "node_modules/semver": {
       "version": "7.5.4",
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.5.4.tgz",
@@ -7901,68 +7123,50 @@
       }
     },
     "node_modules/socket.io": {
-      "version": "4.6.1",
-      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-4.6.1.tgz",
-      "integrity": "sha512-KMcaAi4l/8+xEjkRICl6ak8ySoxsYG+gG6/XfRCPJPQ/haCRIJBTL4wIl8YCsmtaBovcAXGLOShyVWQ/FG8GZA==",
+      "version": "4.7.5",
+      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-4.7.5.tgz",
+      "integrity": "sha512-DmeAkF6cwM9jSfmp6Dr/5/mfMwb5Z5qRrSXLpo3Fq5SqyU8CMF15jIN4ZhfSwu35ksM1qmHZDQ/DK5XTccSTvA==",
       "dependencies": {
         "accepts": "~1.3.4",
         "base64id": "~2.0.0",
+        "cors": "~2.8.5",
         "debug": "~4.3.2",
-        "engine.io": "~6.4.1",
+        "engine.io": "~6.5.2",
         "socket.io-adapter": "~2.5.2",
-        "socket.io-parser": "~4.2.1"
+        "socket.io-parser": "~4.2.4"
       },
       "engines": {
-        "node": ">=10.0.0"
+        "node": ">=10.2.0"
       }
     },
     "node_modules/socket.io-adapter": {
-      "version": "2.5.2",
-      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.5.2.tgz",
-      "integrity": "sha512-87C3LO/NOMc+eMcpcxUBebGjkpMDkNBS9tf7KJqcDsmL936EChtVva71Dw2q4tQcuVC+hAUy4an2NO/sYXmwRA==",
+      "version": "2.5.5",
+      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.5.5.tgz",
+      "integrity": "sha512-eLDQas5dzPgOWCk9GuuJC2lBqItuhKI4uxGgo9aIV7MYbk2h9Q6uULEh8WBzThoI7l+qU9Ast9fVUmkqPP9wYg==",
       "dependencies": {
-        "ws": "~8.11.0"
-      }
-    },
-    "node_modules/socket.io-adapter/node_modules/ws": {
-      "version": "8.11.0",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-8.11.0.tgz",
-      "integrity": "sha512-HPG3wQd9sNQoT9xHyNCXoDUa+Xw/VevmY9FoHyQ+g+rrMn4j6FB4np7Z0OhdTgjx6MgQLK7jwSy1YecU1+4Asg==",
-      "engines": {
-        "node": ">=10.0.0"
-      },
-      "peerDependencies": {
-        "bufferutil": "^4.0.1",
-        "utf-8-validate": "^5.0.2"
-      },
-      "peerDependenciesMeta": {
-        "bufferutil": {
-          "optional": true
-        },
-        "utf-8-validate": {
-          "optional": true
-        }
+        "debug": "~4.3.4",
+        "ws": "~8.17.1"
       }
     },
     "node_modules/socket.io-client": {
-      "version": "4.5.4",
-      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-4.5.4.tgz",
-      "integrity": "sha512-ZpKteoA06RzkD32IbqILZ+Cnst4xewU7ZYK12aS1mzHftFFjpoMz69IuhP/nL25pJfao/amoPI527KnuhFm01g==",
+      "version": "4.7.5",
+      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-4.7.5.tgz",
+      "integrity": "sha512-sJ/tqHOCe7Z50JCBCXrsY3I2k03iOiUe+tj1OmKeD2lXPiGH/RUCdTZFoqVyN7l1MnpIzPrGtLcijffmeouNlQ==",
       "dev": true,
       "dependencies": {
         "@socket.io/component-emitter": "~3.1.0",
         "debug": "~4.3.2",
-        "engine.io-client": "~6.2.3",
-        "socket.io-parser": "~4.2.1"
+        "engine.io-client": "~6.5.2",
+        "socket.io-parser": "~4.2.4"
       },
       "engines": {
         "node": ">=10.0.0"
       }
     },
     "node_modules/socket.io-parser": {
-      "version": "4.2.3",
-      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.2.3.tgz",
-      "integrity": "sha512-JMafRntWVO2DCJimKsRTh/wnqVvO4hrfwOqtO7f+uzwsQMuxO6VwImtYxaQ+ieoyshWOTJyV0fA21lccEXRPpQ==",
+      "version": "4.2.4",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.2.4.tgz",
+      "integrity": "sha512-/GbIKmo8ioc+NIWIhwdecY0ge+qVBSMdgxGygevmdHj24bsfgtCmcUUcQ5ZzcylGFHsN3k4HB4Cgkl96KVnuew==",
       "dependencies": {
         "@socket.io/component-emitter": "~3.1.0",
         "debug": "~4.3.1"
@@ -8770,15 +7974,15 @@
       }
     },
     "node_modules/ws": {
-      "version": "7.4.6",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
-      "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A==",
+      "version": "8.17.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.17.1.tgz",
+      "integrity": "sha512-6XQFvXTkbfUOZOKKILFG1PDK2NDQs4azKQl26T0YS5CxqWLgXajbPZ+h4gZekJyRqFU8pvnbAbbs/3TgRPy+GQ==",
       "engines": {
-        "node": ">=8.3.0"
+        "node": ">=10.0.0"
       },
       "peerDependencies": {
         "bufferutil": "^4.0.1",
-        "utf-8-validate": "^5.0.2"
+        "utf-8-validate": ">=5.0.2"
       },
       "peerDependenciesMeta": {
         "bufferutil": {
diff --git a/package.json b/package.json
index e0ee438..60271af 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "jest-junit": "^12.0.0",
     "nodemon": "^3.0.2",
     "rimraf": "^3.0.2",
-    "socket.io-client": "^4.4.1",
+    "socket.io-client": "^4.7.5",
     "supertest": "^6.1.6",
     "ts-jest": "^29.0.0",
     "ts-node": "^10.9.1",
@@ -59,12 +59,12 @@
     "axios": "^1.6.2",
     "cors": "^2.8.5",
     "dotenv": "^10.0.0",
-    "ethers": "^5.7.2",
+    "ethers": "^6.13.1",
     "express": "^4.18.2",
     "node-cache": "^5.1.2",
     "opossum": "^8.1.3",
     "rate-limiter-flexible": "^4.0.1",
-    "socket.io": "^4.6.1",
+    "socket.io": "^4.7.5",
     "swagger-ui-express": "^4.5.0",
     "yup": "^1.2.0"
   }
diff --git a/src/controller/httpsAPI.ts b/src/controller/httpsAPI.ts
index 2d7ef6c..41ddfee 100644
--- a/src/controller/httpsAPI.ts
+++ b/src/controller/httpsAPI.ts
@@ -8,9 +8,9 @@ import swaggerUI from 'swagger-ui-express'
 import OpenApi from '../api/openapi'
 import BitcoinRouter from '../service/bitcoin/BitcoinRouter'
 import { ValidationError, object, string } from 'yup'
-import { utils } from 'ethers'
 import { AddressService } from '../service/address/AddressService'
 import { supportedFiat } from '../coinmarketcap/support'
+import { ethers } from 'ethers'
 
 interface HttpsAPIDependencies {
   app: Express,
@@ -52,7 +52,7 @@ export class HttpsAPI {
     const addressSchema = object({
       address: string().required('An address is invalid')
         .trim()
-        .transform(address => utils.isAddress(address.toLowerCase()) ? address : '')
+        .transform(address => ethers.isAddress(address.toLowerCase()) ? address : '')
     }).required()
     const currencySchema = object({
       convert: string().optional()
diff --git a/src/index.ts b/src/index.ts
index 3245a98..2a650ac 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -72,7 +72,7 @@ async function main () {
       BLOCKBOOK_URL: network.BLOCKBOOK_URL,
       CYPHER_ESTIMATE_FEE_URL: network.CYPHER_ESTIMATE_FEE_URL
     })
-    nodeProvider[network.ID] = new ethers.providers.JsonRpcProvider(network.NODE_URL)
+    nodeProvider[network.ID] = new ethers.JsonRpcProvider(network.NODE_URL)
   })
   const coinMarketCapApi = new CoinMarketCapAPI(
     environment.COIN_MARKET_CAP_URL,
diff --git a/src/profiler/RbtcBalanceProfiler.ts b/src/profiler/RbtcBalanceProfiler.ts
index 5e6212d..2ac86cf 100644
--- a/src/profiler/RbtcBalanceProfiler.ts
+++ b/src/profiler/RbtcBalanceProfiler.ts
@@ -8,7 +8,7 @@ export class RbtcBalanceProfiler extends Emitter {
   private rbtcBalanceProvider: RbtcBalanceProvider
   private currentBalance = {}
 
-  constructor (address: string, dataSource: DataSource, provider: ethers.providers.JsonRpcProvider) {
+  constructor (address: string, dataSource: DataSource, provider: ethers.JsonRpcProvider) {
     super()
     this.address = address
     this.rbtcBalanceProvider = new RbtcBalanceProvider(this.address, dataSource, provider)
diff --git a/src/profiler/profiler.ts b/src/profiler/profiler.ts
index bf77256..d23c3c3 100644
--- a/src/profiler/profiler.ts
+++ b/src/profiler/profiler.ts
@@ -17,7 +17,7 @@ export class Profiler extends Emitter {
   tokenTransferProfiler: TokenTransferProfiler
 
   constructor (address: string, dataSource: DataSource,
-    lastPrice: LastPrice, provider: ethers.providers.JsonRpcProvider) {
+    lastPrice: LastPrice, provider: ethers.JsonRpcProvider) {
     super()
     this.address = address
 
diff --git a/src/repository/DataSource.ts b/src/repository/DataSource.ts
index 650f635..dba6f31 100644
--- a/src/repository/DataSource.ts
+++ b/src/repository/DataSource.ts
@@ -37,7 +37,7 @@ export type RSKDatasource = {
 }
 
 export type RSKNodeProvider = {
-  [key: string] : ethers.providers.JsonRpcProvider
+  [key: string] : ethers.JsonRpcProvider
 }
 
 export type BitcoinDatasource = {
diff --git a/src/service/address/AddressService.ts b/src/service/address/AddressService.ts
index e278cff..29ceef0 100644
--- a/src/service/address/AddressService.ts
+++ b/src/service/address/AddressService.ts
@@ -109,7 +109,7 @@ export class AddressService {
     const balance = await this.providerMapping[chainId].getBalance(address.toLowerCase())
     const balances = await Promise.all([
       this.dataSourceMapping[chainId].getTokensByAddress(address),
-      fromApiToRtbcBalance(balance.toHexString(), parseInt(chainId))
+      fromApiToRtbcBalance(`0x0${balance.toString(16)}`, parseInt(chainId))
     ])
     return balances.flat()
   }
diff --git a/src/service/balance/rbtcBalanceProvider.ts b/src/service/balance/rbtcBalanceProvider.ts
index 3536255..9dbb2a3 100644
--- a/src/service/balance/rbtcBalanceProvider.ts
+++ b/src/service/balance/rbtcBalanceProvider.ts
@@ -6,9 +6,9 @@ import { PollingProvider } from '../AbstractPollingProvider'
 
 export class RbtcBalanceProvider extends PollingProvider<Event> {
   private dataSource: DataSource
-  private provider: ethers.providers.JsonRpcProvider
+  private provider: ethers.JsonRpcProvider
 
-  constructor (address: string, dataSource: DataSource, provider: ethers.providers.JsonRpcProvider) {
+  constructor (address: string, dataSource: DataSource, provider: ethers.JsonRpcProvider) {
     super(address)
     this.dataSource = dataSource
     this.provider = provider
@@ -16,14 +16,14 @@ export class RbtcBalanceProvider extends PollingProvider<Event> {
 
   async poll () {
     return await this.provider.getBalance(this.address.toLowerCase())
-      .then(balance => fromApiToRtbcBalance(balance.toHexString(), parseInt(this.dataSource.id)))
+      .then(balance => fromApiToRtbcBalance(balance.toString(16), parseInt(this.dataSource.id)))
       .then(rbtcBalance => [{ type: 'newBalance', payload: rbtcBalance }])
       .catch(() => [])
   }
 
   public async getCurrentBalance () {
     return await this.provider.getBalance(this.address.toLowerCase())
-      .then(balance => fromApiToRtbcBalance(balance.toHexString(), parseInt(this.dataSource.id)))
+      .then(balance => fromApiToRtbcBalance(balance.toString(16), parseInt(this.dataSource.id)))
       .catch(() => fromApiToRtbcBalance('0', parseInt(this.dataSource.id)))
   }
 }
diff --git a/test/MockProvider.ts b/test/MockProvider.ts
index f2c70b0..3b778f9 100644
--- a/test/MockProvider.ts
+++ b/test/MockProvider.ts
@@ -1,8 +1,4 @@
-import { ethers } from 'ethers'
-
-export class MockProvider extends ethers.providers.BaseProvider {
-  getBalance ():
-    Promise<ethers.BigNumber> {
-    return Promise.resolve(ethers.BigNumber.from('0x56900d33ca7fc0000'))
-  }
+export const getBalance = ():
+    Promise<bigint> => {
+  return Promise.resolve(BigInt('0x056900d33ca7fc0000'))
 }
diff --git a/test/address.test.ts b/test/address.test.ts
index 8554a2f..a028e2c 100644
--- a/test/address.test.ts
+++ b/test/address.test.ts
@@ -8,7 +8,7 @@ import {
 } from './mockAddressResponses'
 import BitcoinCore from '../src/service/bitcoin/BitcoinCore'
 import { LastPrice } from '../src/service/price/lastPrice'
-import { MockProvider } from './MockProvider'
+import { getBalance } from './MockProvider'
 import { AddressService } from '../src/service/address/AddressService'
 
 const setupTestApi = (dataSourceMapping: RSKDatasource) => {
@@ -19,7 +19,10 @@ const setupTestApi = (dataSourceMapping: RSKDatasource) => {
     CYPHER_ESTIMATE_FEE_URL: process.env.CYPHER_ESTIMATE_FEE_URL || ''
   })
   const providerMapping = {}
-  providerMapping['31'] = new MockProvider(31)
+  const providerMock = {
+    getBalance
+  }
+  providerMapping['31'] = providerMock
   const lastPrice = new LastPrice()
   const addressService = new AddressService({
     dataSourceMapping,
diff --git a/test/api.test.ts b/test/api.test.ts
index 28539e5..a0b8bcd 100644
--- a/test/api.test.ts
+++ b/test/api.test.ts
@@ -10,7 +10,7 @@ import { LastPrice } from '../src/service/price/lastPrice'
 import { PriceCollector } from '../src/service/price/priceCollector'
 import { MockPrice } from '../src/service/price/mockPrice'
 import BitcoinCore from '../src/service/bitcoin/BitcoinCore'
-import { MockProvider } from './MockProvider'
+import { getBalance } from './MockProvider'
 import { AddressService } from '../src/service/address/AddressService'
 let priceCollector
 
@@ -29,7 +29,10 @@ const setupTestApi = (coinMarketCapApi: CoinMarketCapAPI) => {
     CYPHER_ESTIMATE_FEE_URL: process.env.CYPHER_ESTIMATE_FEE_URL || ''
   })
   const providerMapping = {}
-  providerMapping['31'] = new MockProvider(31)
+  const providerMock = {
+    getBalance
+  }
+  providerMapping['31'] = providerMock
   const dataSourceMapping = { 31: {} } as any
   const addressService = new AddressService({
     dataSourceMapping,
diff --git a/test/ws.test.ts b/test/ws.test.ts
index 836443f..073d335 100644
--- a/test/ws.test.ts
+++ b/test/ws.test.ts
@@ -12,7 +12,7 @@ import { pricesResponse } from './mockPriceResponses'
 import { LastPrice } from '../src/service/price/lastPrice'
 import { PriceCollector } from '../src/service/price/priceCollector'
 import { Server } from 'socket.io'
-import { MockProvider } from './MockProvider'
+import { getBalance } from './MockProvider'
 import { AddressService } from '../src/service/address/AddressService'
 
 describe('web socket', () => {
@@ -54,7 +54,10 @@ describe('web socket', () => {
     const dataSourceMapping = {}
     dataSourceMapping['31'] = rskExplorerApiMock as any
     const providerMapping = {}
-    providerMapping['31'] = new MockProvider(31)
+    const providerMock = {
+      getBalance
+    }
+    providerMapping['31'] = providerMock
     const bitcoinMapping = {}
     const addressService = new AddressService({
       dataSourceMapping,
diff --git a/tsconfig.json b/tsconfig.json
index 779115b..7437557 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
-    "target": "es5",                          
+    "target": "ES2017",                          
     "module": "commonjs",                    
     "lib": ["es6"],                     
     "allowJs": true,