diff --git a/contracts/Ethlance.sol b/contracts/Ethlance.sol
index 8d6acf6b..30144d58 100644
--- a/contracts/Ethlance.sol
+++ b/contracts/Ethlance.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.21;
+pragma solidity ^0.8.0;
 pragma experimental ABIEncoderV2;
 
 import "./EthlanceStructs.sol";
diff --git a/contracts/EthlanceStructs.sol b/contracts/EthlanceStructs.sol
index eb3ecf7f..64841491 100644
--- a/contracts/EthlanceStructs.sol
+++ b/contracts/EthlanceStructs.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.21;
+pragma solidity ^0.8.0;
 pragma experimental ABIEncoderV2;
 
 import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
diff --git a/contracts/Job.sol b/contracts/Job.sol
index 816774b1..54990101 100644
--- a/contracts/Job.sol
+++ b/contracts/Job.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.21;
+pragma solidity ^0.8.0;
 pragma experimental ABIEncoderV2;
 
 import "./EthlanceStructs.sol";
diff --git a/contracts/JobHelpers.sol b/contracts/JobHelpers.sol
index c9151381..98982fcd 100644
--- a/contracts/JobHelpers.sol
+++ b/contracts/JobHelpers.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: GPL-3.0
-pragma solidity ^0.8.21;
+pragma solidity ^0.8.0;
 pragma experimental ABIEncoderV2;
 
 import "./EthlanceStructs.sol";
diff --git a/contracts/Migrations.sol b/contracts/Migrations.sol
index 6aca51a8..0cfdc231 100644
--- a/contracts/Migrations.sol
+++ b/contracts/Migrations.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-pragma solidity ^0.8.21;
+pragma solidity ^0.8.0;
 
 contract Migrations {
   address public owner = msg.sender;
diff --git a/package.json b/package.json
index 8f3e5517..975a4c75 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "solc": "0.8.21"
   },
   "resolutions": {
-    "solc": "0.8.21"
+    "solc": "0.8.19"
   },
   "engines": {
     "node": "^18.17.0"
diff --git a/truffle-config.js b/truffle-config.js
index 622e7131..04afea98 100644
--- a/truffle-config.js
+++ b/truffle-config.js
@@ -1,6 +1,7 @@
 'use strict';
 const ETHLANCE_ENV = process.env.ETHLANCE_ENV || "dev";
-
+const ETHLANCE_MNEMONIC = process.env.ETHLANCE_MNEMONIC;
+const ETHLANCE_ETH_NODE_ADDRESS = process.env.ETHLANCE_ETH_NODE_ADDRESS;
 
 const smartContractsPaths = {
   "dev" : '/shared/src/ethlance/shared/smart_contracts_dev.cljs',
@@ -24,7 +25,8 @@ parameters.dev = parameters.qa;
 
 
 const HDWalletProvider = require('@truffle/hdwallet-provider');
-const mnemonic = "easy leave proof verb wait patient fringe laptop intact opera slab shine";
+const DEFAULT_DEV_MNEMONIC = "easy leave proof verb wait patient fringe laptop intact opera slab shine";
+const mnemonic = ETHLANCE_MNEMONIC || DEFAULT_DEV_MNEMONIC;
 
 module.exports = {
   env: ETHLANCE_ENV,
@@ -35,7 +37,7 @@ module.exports = {
 
   compilers: {
     solc: {
-      version: "0.8.21",
+      version: "0.8.17",
       settings: {
         optimizer: {
           enabled: true,
@@ -77,6 +79,17 @@ module.exports = {
       gasPrice: 20e9, // 20 gwei, default for ganache
       network_id: '*',
       from: "0xeba108B12593336bBa461b8a6e7DC5A4b597Bc7E" // 6) address
+    },
+
+    "arbitrum-sepolia": {
+      provider: new HDWalletProvider({mnemonic: {phrase: mnemonic},
+                                      providerOrUrl: ETHLANCE_ETH_NODE_ADDRESS ||  'https://sepolia-rollup.arbitrum.io/rpc'
+                                     }),
+      gas: 6e6, // gas limit
+      gasPrice: 20e9, // 20 gwei, default for ganache
+      network_id: '*',
+      from: "0x642fAE80d3C74559A18B0558A518cDBF6b047968" // 1st address
     }
+
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 8edfe977..c2a134d8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5609,7 +5609,20 @@ snake-case@^2.1.0:
   dependencies:
     no-case "^2.2.0"
 
-solc@0.8.21, solc@^0.4.20:
+solc@0.8.19, solc@^0.4.20:
+  version "0.8.19"
+  resolved "https://registry.yarnpkg.com/solc/-/solc-0.8.19.tgz#cac6541106ae3cff101c740042c7742aa56a2ed3"
+  integrity sha512-yqurS3wzC4LdEvmMobODXqprV4MYJcVtinuxgrp61ac8K2zz40vXA0eSAskSHPgv8dQo7Nux39i3QBsHx4pqyA==
+  dependencies:
+    command-exists "^1.2.8"
+    commander "^8.1.0"
+    follow-redirects "^1.12.1"
+    js-sha3 "0.8.0"
+    memorystream "^0.3.1"
+    semver "^5.5.0"
+    tmp "0.0.33"
+
+solc@0.8.21:
   version "0.8.21"
   resolved "https://registry.yarnpkg.com/solc/-/solc-0.8.21.tgz#c3cd505c360ea2fa0eaa5ab574ef96bffb1a2766"
   integrity sha512-N55ogy2dkTRwiONbj4e6wMZqUNaLZkiRcjGyeafjLYzo/tf/IvhHY5P5wpe+H3Fubh9idu071i8eOGO31s1ylg==