diff --git a/lectures/pandas.md b/lectures/pandas.md
index 3d2c809d..cec984bf 100644
--- a/lectures/pandas.md
+++ b/lectures/pandas.md
@@ -168,7 +168,7 @@ The dataset contains the following indicators
 We'll read this in from a URL using the `pandas` function `read_csv`.
 
 ```{code-cell} ipython3
-df = pd.read_csv('https://raw.githubusercontent.com/QuantEcon/lecture-python-programming/master/source/_static/lecture_specific/pandas/data/test_pwt.csv')
+df = pd.read_csv('https://raw.githubusercontent.com/QuantEcon/lecture-python-programming/main/lectures/_static/lecture_specific/pandas/data/test_pwt.csv')
 type(df)
 ```
 
diff --git a/lectures/python_advanced_features.md b/lectures/python_advanced_features.md
index 9d2cb574..139105ec 100644
--- a/lectures/python_advanced_features.md
+++ b/lectures/python_advanced_features.md
@@ -1068,7 +1068,7 @@ In summary, iterables
 :label: paf_ex1
 ```
 
-Complete the following code, and test it using [this csv file](https://raw.githubusercontent.com/QuantEcon/lecture-python-programming/master/source/_static/lecture_specific/python_advanced_features/test_table.csv), which we assume that you've put in your current working directory
+Complete the following code, and test it using [this csv file](https://raw.githubusercontent.com/QuantEcon/lecture-python-programming/main/lectures/_static/lecture_specific/python_advanced_features/test_table.csv), which we assume that you've put in your current working directory
 
 ```{code-block} python3
 :class: no-execute