diff --git a/artifacts/address.json b/artifacts/address.json
index 0f4804d84..068ce272e 100644
--- a/artifacts/address.json
+++ b/artifacts/address.json
@@ -4,14 +4,16 @@
     "BFactory": "0x53eDF9289B0898e1652Ce009AACf8D25fA9A42F8",
     "FixedRateExchange": "0xeD1DfC5F3a589CfC4E8B91C1fbfC18FC6699Fbde",
     "Metadata": "0xFD8a7b6297153397B7eb4356C47dbd381d58bFF4",
-    "Ocean": "0x8967BCF84170c91B0d24D4302C2376283b0B3a07"
+    "Ocean": "0x8967BCF84170c91B0d24D4302C2376283b0B3a07",
+    "Dispenser": "0x623744Cd25Ed553d3b4722667697F926cf99658B"
   },
   "ropsten": {
     "DTFactory": "0x6ebcCa6df2CAba986FCF44E64Ee82251c1455Dcc",
     "BFactory": "0x75be6e18c80A487C8b49663bf14f80A6495045B2",
     "FixedRateExchange": "0xA7a711A09396DF82D9be46A26B48BafdB9BB4fA6",
     "Metadata": "0x3cd7Ef1F207E1a46AAd7D5d7F5f0A5cF081Fc726",
-    "Ocean": "0x5e8DCB2AfA23844bcc311B00Ad1A0C30025aADE9"
+    "Ocean": "0x5e8DCB2AfA23844bcc311B00Ad1A0C30025aADE9",
+    "Dispenser": "0xc37F8341Ac6e4a94538302bCd4d49Cf0852D30C0"
   },
   "development": {
     "DTFactory": "0x626aD26c7Ea494b11DbFd5dD487fA98BA32CaA42",
@@ -25,20 +27,23 @@
     "BFactory": "0xbe0083053744ECb871510C88dC0f6b77Da162706",
     "FixedRateExchange": "0x608d05214E42722B94a54cF6114d4840FCfF84e1",
     "Metadata": "0x1a4b70d8c9DcA47cD6D0Fb3c52BB8634CA1C0Fdf",
-    "Ocean": "0x967da4048cD07aB37855c090aAF366e4ce1b9F48"
+    "Ocean": "0x967da4048cD07aB37855c090aAF366e4ce1b9F48",
+    "Dispenser": "0xDEfD0018969cd2d4E648209F876ADe184815f038"
   },
   "polygon": {
     "DTFactory": "0xF6410bf5d773C7a41ebFf972f38e7463FA242477",
     "BFactory": "0x69B6E54Ad2b3c2801d11d8Ad56ea1d892555b776",
     "FixedRateExchange": "0x2112Eb973af1DBf83a4f11eda82f7a7527D7Fde5",
     "Metadata": "0x80E63f73cAc60c1662f27D2DFd2EA834acddBaa8",
-    "Ocean": "0x282d8efCe846A88B159800bd4130ad77443Fa1A1"
+    "Ocean": "0x282d8efCe846A88B159800bd4130ad77443Fa1A1",
+    "Dispenser": "0x30E4CC2C7A9c6aA2b2Ce93586E3Df24a3A00bcDD"
   },
   "moonbeamalpha": {
     "DTFactory": "0x80E63f73cAc60c1662f27D2DFd2EA834acddBaa8",
     "BFactory": "0x30E4CC2C7A9c6aA2b2Ce93586E3Df24a3A00bcDD",
     "FixedRateExchange": "0xDEfD0018969cd2d4E648209F876ADe184815f038",
     "Metadata": "0x9C9eE07b8Ce907D2f9244F8317C1Ed29A3193bAe",
-    "Ocean": "0x3c21a90599b5B7f37014cA5Bf30d3f1b73d7e391"
+    "Ocean": "0x3c21a90599b5B7f37014cA5Bf30d3f1b73d7e391",
+    "Dispenser": "0x042D709b72B437d7d387F2679bD4ac060e561c9f"
   }
-}
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 21261cda4..137377d29 100644
--- a/package.json
+++ b/package.json
@@ -32,6 +32,7 @@
     "deploy:pacific": "npm run clean && npm run compile && export NETWORK='pacific' && truffle migrate --network pacific && npm run export:artifacts",
     "deploy:mainnet": "npm run clean && npm run compile && export NETWORK='mainnet' && truffle migrate --network mainnet && npm run export:artifacts",
     "deploy:rinkeby": "npm run clean && npm run compile && export NETWORK='rinkeby' && truffle migrate --network rinkeby && npm run export:artifacts",
+    "deploy:ropsten": "npm run clean && npm run compile && export NETWORK='ropsten' && truffle migrate --network ropsten && npm run export:artifacts",
     "deploy:polygon": "npm run clean && npm run compile && export NETWORK='polygon' && truffle migrate --network polygon && npm run export:artifacts",
     "deploy:moonbeamalpha": "npm run clean && npm run compile && export NETWORK='moonbeamalpha' && truffle migrate --network moonbeamalpha && npm run export:artifacts",
     "security:slither": "slither . 2>&1 | tee slitherReport.txt"
diff --git a/truffle.js b/truffle.js
index 3a8716966..7f95190ca 100644
--- a/truffle.js
+++ b/truffle.js
@@ -93,15 +93,22 @@ module.exports = {
         mainnet: {
             provider: () => setupWallet(`https://mainnet.infura.io/v3/${process.env.INFURA_TOKEN}`),
             network_id: 0x1, // 1
-            from: '0x614E188acBB597C2b2BF0CB39819975b05217C33',
-            gas: 7 * 1000000,
-            gasPrice: utils.toWei('60', 'gwei')
+            from: '0xC7EC1970B09224B317c52d92f37F5e1E4fF6B687',
+            gas: 2 * 1000000,
+            gasPrice: utils.toWei('105', 'gwei')
         },
         // mainnet the ethereum mainnet
         rinkeby: {
             provider: () => setupWallet(`https://rinkeby.infura.io/v3/${process.env.INFURA_TOKEN}`),
             network_id: 0x4,
-            from: '0xD6e0F938323A9D9d52b26700716E2e8E027f3795',
+            from: '0xC7EC1970B09224B317c52d92f37F5e1E4fF6B687',
+            gas: 7 * 1000000,
+            gasPrice: utils.toWei('8', 'gwei')
+        },
+        ropsten: {
+            provider: () => setupWallet(`https://ropsten.infura.io/v3/${process.env.INFURA_TOKEN}`),
+            network_id: 0x3,
+            from: '0xC7EC1970B09224B317c52d92f37F5e1E4fF6B687',
             gas: 7 * 1000000,
             gasPrice: utils.toWei('8', 'gwei')
         },
@@ -114,7 +121,7 @@ module.exports = {
             gasPrice: utils.toWei('10', 'mwei')
         },
         polygon: {
-            provider: () => setupWallet('https://rpc-mainnet.maticvigil.com'),
+            provider: () => setupWallet('https://rpc.polygon.oceanprotocol.com/'),
             network_id: 0x89, // 137
             from: '0xC7EC1970B09224B317c52d92f37F5e1E4fF6B687',
             gas: 7 * 1000000,