diff --git a/examples/workflow_by_code.ipynb b/examples/workflow_by_code.ipynb
index 20fce92fe..d5711e0b5 100644
--- a/examples/workflow_by_code.ipynb
+++ b/examples/workflow_by_code.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "source": [
-    "[![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/microsoft/qlib/blob/main/examples/workflow_by_code.ipynb)"
+    "<a href=\"https://colab.research.google.com/github/microsoft/qlib/blob/main/examples/workflow_by_code.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
    ],
    "cell_type": "markdown",
    "metadata": {}