diff --git a/datasets/hed/README.md b/datasets/hed/README.md
index 1044f38..f48c97d 100644
--- a/datasets/hed/README.md
+++ b/datasets/hed/README.md
@@ -1 +1,4 @@
-Download the Handwritten Equation Decipherment dataset from [NJU Box](https://box.nju.edu.cn/d/23cd88c9325b4d96a571/) to this folder
+Download the Handwritten Equation Decipherment dataset from [NJU Box](https://box.nju.edu.cn/f/391c2d48c32b436cb833/) to this folder and unzip it:
+```
+unzip HED.zip
+```