diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
new file mode 100644
index 0000000..85651c4
--- /dev/null
+++ b/.github/workflows/node.js.yml
@@ -0,0 +1,31 @@
+# This workflow will do a clean installation of node dependencies, cache/restore them, build the source code and run tests across different versions of node
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions
+
+name: Node.js CI
+
+on:
+  push:
+    branches: [ ropsten ]
+  pull_request:
+    branches: [ ropsten ]
+
+jobs:
+  build:
+    name: Truffle test
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [12.x, 14.x, 16.x]
+        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v3
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+    - run: npm install -g truffle
+    - run: truffle test
+
diff --git a/test/TestImageLabel.sol b/test/TestImageLabel.sol
deleted file mode 100644
index b558c7b..0000000
--- a/test/TestImageLabel.sol
+++ /dev/null
@@ -1,40 +0,0 @@
-// Currently I can't find way to send ether to smart contract, so the test will fail.
-/*
-pragma solidity ^0.6.0;
-
-import "truffle/Assert.sol";
-import "truffle/DeployedAddresses.sol";
-import "../contracts/ImageLabel.sol";
-
-contract TestImageLabel {
-    // The id of the pet that will be used for testing
-    string img_cid = "https://test";
-    string classname = "monkey";
-    uint public initialBalance = 1 ether;
-
-    ImageLabel contract_ = new ImageLabel();
-
-    function testUploadRawImage() public {
-
-        contract_.uploadRawImage(img_cid);
-        // contract_.send(initialBalance);
-        uint num_img = contract_.getNum();
-        Assert.equal(num_img, 1, "num img not equal");
-    }
-
-    function testGetRandomImage() public {
-        // ImageLabel contract_ = new ImageLabel();
-
-        string memory cid = contract_.getRandomImage();
-        Assert.equal(img_cid, cid, "cid not equal!");
-        
-    }
-
-    function testUploadLabeledImage() public {
-        contract_.uploadLabeledImage(img_cid, classname);
-        uint num_img = contract_.getNum();
-
-        Assert.equal(num_img, 0, "num img not equal");
-    }
-}
-*/
\ No newline at end of file
diff --git a/truffle-config.js b/truffle-config.js
index 033581a..c878b3b 100644
--- a/truffle-config.js
+++ b/truffle-config.js
@@ -1,6 +1,4 @@
 const path = require("path");
-const { projectId, mnemonic } = require('./secrets.json');
-const HDWalletProvider = require('@truffle/hdwallet-provider');
 
 module.exports = {
   // See <http://truffleframework.com/docs/advanced/configuration>
@@ -9,14 +7,7 @@ module.exports = {
   networks: {
     develop: {
       port: 8545
-    },
-    ropsten: {
-      provider: () => new HDWalletProvider(mnemonic, `https://ropsten.infura.io/v3/${projectId}`),
-      network_id: 3,       // Ropsten's id
-      confirmations: 2,    // # of confs to wait between deployments. (default: 0)
-      timeoutBlocks: 200,  // # of blocks before a deployment times out  (minimum/default: 50)
-      skipDryRun: true 
-    },
+    }
   },
   
   compilers: {