diff --git a/lectures/french_rev.md b/lectures/french_rev.md
index f91dfb9..68ba5f5 100644
--- a/lectures/french_rev.md
+++ b/lectures/french_rev.md
@@ -62,6 +62,8 @@ This lecture uses data from three spreadsheets assembled by {cite}`sargent_velde
   * [datasets/assignat.xlsx](https://github.com/QuantEcon/lecture-python-intro/blob/main/lectures/datasets/assignat.xlsx)
 
 ```{code-cell} ipython3
+:tags: [hide-output]
+
 %pip install openpyxl requests
 ```
 
diff --git a/lectures/long_run_growth.md b/lectures/long_run_growth.md
index b83a3bf..eafdde1 100644
--- a/lectures/long_run_growth.md
+++ b/lectures/long_run_growth.md
@@ -65,6 +65,8 @@ be interesting to describe both total GDP and GDP per capita as it evolves withi
 First we will need to install the following package
 
 ```{code-cell} ipython3
+:tags: [hide-output]
+
 %pip install openpyxl
 ```