diff --git a/example/get_started_en.ipynb b/example/get_started_en.ipynb
index 001587b..29de8d4 100644
--- a/example/get_started_en.ipynb
+++ b/example/get_started_en.ipynb
@@ -286,13 +286,13 @@
    },
    "outputs": [],
    "source": [
-    "import okx.MarketData as MarketData\n",
+    "import okx.PublicData as PublicData\n",
     "\n",
     "flag = \"1\"  # live trading: 0, demo trading: 1\n",
     "\n",
-    "marketDataAPI = MarketData.MarketAPI(flag=flag)\n",
+    "PublicDataAPI = PublicData.PublicAPI(flag=flag)\n",
     "\n",
-    "result = marketDataAPI.get_instruments(\n",
+    "result = PublicDataAPI.get_instruments(\n",
     "   instType=\"SPOT\"\n",
     ")\n",
     "print(result)"