diff --git a/en/10/05.md b/en/10/05.md
index 6639155840..0a9cfb6043 100644
--- a/en/10/05.md
+++ b/en/10/05.md
@@ -23,7 +23,7 @@ material:
                 // Setting the provider with the Infura Mainnet address and Token
                 return new HDWalletProvider(mnemonic, "https://mainnet.infura.io/v3/YOUR_TOKEN")
               },
-              network_id: "1"
+              network_id: 1
             },
             // Configuration for rinkeby network
             rinkeby: {
@@ -54,7 +54,7 @@ material:
               // Setting the provider with the Infura Mainnet address and Token
               return new HDWalletProvider(mnemonic, "https://mainnet.infura.io/v3/YOUR_TOKEN")
             },
-            network_id: "1"
+            network_id: 1
           },
           // Configuration for rinkeby network
           rinkeby: {
@@ -96,7 +96,7 @@ $ cat truffle.js
  *     provider: function() {
  *       return new HDWalletProvider(mnemonic, 'https://mainnet.infura.io/<infura-key>')
  *     },
- *     network_id: '1',
+ *     network_id: 1,
  *     gas: 4500000,
  *     gasPrice: 10000000000,
  *   },
@@ -143,7 +143,7 @@ networks: {
       // Setting the provider with the Infura Mainnet address and Token
       return new HDWalletProvider(mnemonic, "https://mainnet.infura.io/v3/YOUR_TOKEN")
     },
-    network_id: "1"
+    network_id: 1
   },
   // Configuration for rinkeby network
   rinkeby: {
@@ -180,7 +180,7 @@ module.exports = {
         // Setting the provider with the Infura Mainnet address and Token
         return new HDWalletProvider(mnemonic, "https://mainnet.infura.io/v3/YOUR_TOKEN")
       },
-      network_id: "1"
+      network_id: 1
     },
     // Configuration for rinkeby network
     rinkeby: {