diff --git a/Translated_Book/ch02/2.8词位置编码.ipynb b/Translated_Book/ch02/2.8词位置编码.ipynb
index 69c21e9..30c7872 100644
--- a/Translated_Book/ch02/2.8词位置编码.ipynb
+++ b/Translated_Book/ch02/2.8词位置编码.ipynb
@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# 2.6 使用滑动窗口进行数据采样"
+    "# 2.8词位置编码"
    ]
   },
   {