diff --git a/lectures/datasets/mpd2020.xlsx b/lectures/datasets/mpd2020.xlsx
deleted file mode 100644
index d5076da..0000000
Binary files a/lectures/datasets/mpd2020.xlsx and /dev/null differ
diff --git a/lectures/long_run_growth.md b/lectures/long_run_growth.md
index b83a3bf..854400c 100644
--- a/lectures/long_run_growth.md
+++ b/lectures/long_run_growth.md
@@ -94,7 +94,7 @@ Here we read the Maddison data into a pandas `DataFrame`:
 
 ```{code-cell} ipython3
 pyodide_http.patch_all()
-data_url = "https://raw.githubusercontent.com/QuantEcon/lecture-python-intro/main/lectures/datasets/mpd2020.xlsx"
+data_url = "https://github.com/QuantEcon/data-lectures/raw/main/lectures/mpd2020.xlsx"
 data = pd.read_excel(data_url, 
                      sheet_name='Full data')
 data.head()