diff --git a/.github/workflows/test-nightly.yml b/.github/workflows/test-nightly.yml
new file mode 100644
index 0000000..6bc4151
--- /dev/null
+++ b/.github/workflows/test-nightly.yml
@@ -0,0 +1,47 @@
+# Run extension tests nightly on vscode insiders version
+
+name: test-nightly
+
+# Controls when the workflow will run
+on:
+  schedule:
+    - cron: "45 11 * * *"
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  test-smoke:
+    name: smoke-${{ matrix.version }}-${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        version: [R2021b, R2023a]
+        os: [windows-latest, ubuntu-latest, macos-13]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+      - name: Set up MATLAB
+        uses: matlab-actions/setup-matlab@v1.2.3
+        with:
+          release: ${{ matrix.version }}
+        env:
+          MATHWORKS_SKIP_ACTIVATION: true   
+      - name: Setup node
+        uses: actions/setup-node@v3.5.1
+      - name: npm clean install
+        run: npm ci
+      - name: Start Xvfb 
+        run: /usr/bin/Xvfb :17 -screen 0 1024x768x24 > /dev/null 2>&1 & echo "Started xvfb"
+        shell: bash
+        if: ${{ success() && matrix.os == 'ubuntu-latest' }}
+      - name: Run tests
+        run: npm run test-insiders
+        env:
+          MLM_WEB_LICENSE: true
+          MLM_WEB_ID: ${{secrets.MLM_WEB_ID}}
+          MLM_WEB_USER_CRED: ${{secrets.MLM_WEB_USER_CRED}}
+          DISPLAY: ":17.0"
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 4a0bd54..21ab96b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,8 +7,6 @@ on:
   # Triggers the workflow on push events for the "main" branch
   push:
     branches: [ main ]
-  schedule:
-    - cron: "45 11 * * *"
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
diff --git a/package.json b/package.json
index 9bebbf8..0c43259 100644
--- a/package.json
+++ b/package.json
@@ -112,6 +112,7 @@
 		"lint": "eslint src --ext ts",
 		"lint:fix": "eslint src --ext ts --fix",
 		"test": "node ./out/test/runTest.js",
+		"test-insiders": "node ./out/test/runTest.js --insiders",
 		"postinstall": "cd server && npm install && cd ..",
 		"package": "vsce package"
 	},
diff --git a/src/test/runTest.ts b/src/test/runTest.ts
index 1bf6801..208f054 100644
--- a/src/test/runTest.ts
+++ b/src/test/runTest.ts
@@ -8,7 +8,12 @@ import * as os from 'os'
 async function main (): Promise<void> {
     try {
         // Run the test against minimum supported and latest stable VS Code version
-        const versions = ['1.67.0', 'stable']
+        let versions = ['1.67.0', 'stable']
+
+        // If insiders argument is specified in CLI, run only against insiders version instead
+        if (process.argv.includes('--insiders')) {
+            versions = ['insiders']
+        }
 
         // The folder containing the Extension Manifest package.json
         // Passed to `--extensionDevelopmentPath`