diff --git a/.env.sample b/.env.sample
index 604f0d6..260cc40 100644
--- a/.env.sample
+++ b/.env.sample
@@ -25,12 +25,12 @@ DEBUG=false
 # The API that you are using to connect to Ethereum Blockchain
 # 
 # ALCHEMY Mainnet: https://eth-mainnet.alchemyapi.io/v2/[YOUR_ALCHEMY_API_KEY]
-# ALCHEMY Goerli: https://eth-goerli.alchemyapi.io/v2/[YOUR_ALCHEMY_API_KEY]
+# ALCHEMY Polygon: https://polygon-mainnet.alchemyapi.io/v2/[YOUR_ALCHEMY_API_KEY]
 #
 # INFURA Mainnet: https://mainnet.infura.io/v3/[YOUR_INFURA_API_KEY]
-# INFURA Goerli: https://goerli.infura.io/v3/[YOUR_INFURA_API_KEY]
+# INFURA Polygon: https://polygon-mainnet.infura.io/v3/[YOUR_INFURA_API_KEY]
 ETHEREUM_BLOCKCHAIN_API=https://...
 
 ## 
-# The Ethereum Network which CLI should interact with: ganache, goerli, mainnet
-ETHEREUM_NETWORK=goerli
\ No newline at end of file
+# The Ethereum Network which CLI should interact with: ganache, polygon, mainnet
+ETHEREUM_NETWORK=polygon
\ No newline at end of file
diff --git a/README.md b/README.md
index 665e9a4..4eb67d0 100644
--- a/README.md
+++ b/README.md
@@ -34,14 +34,14 @@ DEBUG=false
 # The API that you are using to connect to Ethereum Blockchain
 #
 # ALCHEMY Mainnet: https://eth-mainnet.alchemyapi.io/v2/[YOUR_ALCHEMY_API_KEY]
-# ALCHEMY Goerli: https://eth-goerli.alchemyapi.io/v2/[YOUR_ALCHEMY_API_KEY]
+# ALCHEMY Polygon: https://polygon-mainnet.alchemyapi.io/v2/[YOUR_ALCHEMY_API_KEY]
 #
 # INFURA Mainnet: https://mainnet.infura.io/v3/[YOUR_INFURA_API_KEY]
-# INFURA Goerli: https://goerli.infura.io/v3/[YOUR_INFURA_API_KEY]
+# INFURA Polygon: https://polygon-mainnet.io/v3/[YOUR_INFURA_API_KEY]
 ETHEREUM_BLOCKCHAIN_API=...
 
 ##
-# The Ethereum Network which CLI should interact with: ganache, goerli, mainnet
+# The Ethereum Network which CLI should interact with: ganache, polygon, mainnet
 ETHEREUM_NETWORK=..
 
 ##
diff --git a/hardhat.config.js b/hardhat.config.js
index dfb9848..9630f89 100644
--- a/hardhat.config.js
+++ b/hardhat.config.js
@@ -13,9 +13,9 @@ module.exports = {
         path: "m/44'/60'/0'/0",
       },
     },
-    goerli: {
+    polygon: {
       url: configs.ethBlockchainApi,
-      network_id: 5,
+      network_id: 137,
       skipDryRun: true,
       networkCheckTimeout: 10000,
       deploymentPollingInterval: 10000,
diff --git a/src/utils/contract.js b/src/utils/contract.js
index d5e1ca9..2580d24 100644
--- a/src/utils/contract.js
+++ b/src/utils/contract.js
@@ -24,7 +24,7 @@ const getProvider = (network) => {
     throw new Error("Unable to get the provider due to invalid network");
 
   switch (network) {
-    case "goerli":
+    case "polygon":
     case "mainnet": {
       if (configs.alchemyApiKey)
         return new ethers.providers.AlchemyProvider(