diff --git a/backend/Shifting/Ethereum/hardhat.config.js b/backend/Shifting/Ethereum/hardhat.config.js
index a5d81a383ff981c7ca1255fa7cc3b73ac202db56..dadab8c73e57f43df1935fe6b801b55a147bf001 100644
--- a/backend/Shifting/Ethereum/hardhat.config.js
+++ b/backend/Shifting/Ethereum/hardhat.config.js
@@ -19,10 +19,10 @@ task("accounts", "Prints the list of accounts", async () => {
 module.exports = {
   solidity: "0.8.0",
   networks: {
-    moonbase: {
-      url: `https://rpc.testnet.moonbeam.network`,
-      chainId: 1287,
-      accounts: ["0xf2dd7d26b19893e60a3dcf313f6d02ce3ef2e9c6af2e6e67fb814f4f850a5774"],
+    rinkeby: {
+      url: ``,
+      chainId: 4,
+      accounts: [""],
     }
   }
 };
diff --git a/backend/Shifting/Moonbeam/hardhat.config.js b/backend/Shifting/Moonbeam/hardhat.config.js
index a5d81a383ff981c7ca1255fa7cc3b73ac202db56..f0e8a93d798904eb635091b60da4da8da4a543ba 100644
--- a/backend/Shifting/Moonbeam/hardhat.config.js
+++ b/backend/Shifting/Moonbeam/hardhat.config.js
@@ -22,7 +22,7 @@ module.exports = {
     moonbase: {
       url: `https://rpc.testnet.moonbeam.network`,
       chainId: 1287,
-      accounts: ["0xf2dd7d26b19893e60a3dcf313f6d02ce3ef2e9c6af2e6e67fb814f4f850a5774"],
+      accounts: [""],
     }
   }
 };