diff --git a/_modules/week-03.md b/_modules/week-03.md
index 44a080bf..82fe3224 100644
--- a/_modules/week-03.md
+++ b/_modules/week-03.md
@@ -9,11 +9,11 @@ days:
 - date: 2022-02-01
   events:
     ? '**Lecture 5**{: .label .label-lecture } [Data Wrangling, EDA](lecture/lec05)'
-    : '[Ch. 8-9](https://www.textbook.ds100.org/ch/08/wrangling_intro.html)'
+    : '[Ch. 8-10](https://www.textbook.ds100.org/ch/08/files_intro.html)'
 - date: 2022-02-03
   events:
     ? '**Lecture 6**{: .label .label-lecture } [Regex](lecture/lec06)'
-    : '[Ch. 12](https://www.textbook.ds100.org/ch/12/text_intro.html)'
+    : '[Ch. 13](https://www.textbook.ds100.org/ch/13/text_intro.html)'
 - date: 2021-02-04
   events:
     ? '**Discussion 3**{: .label .label-disc } [Pandas, Data Cleaning](https://drive.google.com/file/d/1GPVst29IHfRj7DvzMUI3_GcIJUD7ubxY/view?usp=sharing) ([code](https://data100.datahub.berkeley.edu/hub/user-redirect/git-pull?repo=https%3A%2F%2Fgithub.com%2FDS-100%2Fsp22&branch=main&urlpath=lab%2Ftree%2Fsp22%2Fdisc%2Fdisc03)) ([solutions](https://drive.google.com/file/d/16FK2F1MPiVpIZtfSlKthoi3rkO6vw5OQ/view?usp=sharing)) ([recording](https://youtube.com/playlist?list=PLQCcNQgUcDfrTOBnCwaADLYoNEmeJCmsP))'
diff --git a/_modules/week-04.md b/_modules/week-04.md
index 98bef65e..26812fc2 100644
--- a/_modules/week-04.md
+++ b/_modules/week-04.md
@@ -9,7 +9,7 @@ days:
 - date: 2022-02-08
   events:
     ? '**Lecture 7**{: .label .label-lecture } [Visualization I](lecture/lec07)'
-    : '[Ch. 10.1-10.3](https://www.textbook.ds100.org/ch/10/viz_quantitative.html)'
+    : '[Ch. 11](https://www.textbook.ds100.org/ch/11/viz_intro.html)'
     ? 'Textbook: [Seaborn Reference Table](https://www.textbook.ds100.org/ch/a04/ref_seaborn.html)'
     ? 'Textbook: [Matplotlib Reference Table](https://www.textbook.ds100.org/ch/a04/ref_matplotlib.html)'
 - date: 2022-02-10
diff --git a/_modules/week-06.md b/_modules/week-06.md
index 4eccbbf8..46e98530 100644
--- a/_modules/week-06.md
+++ b/_modules/week-06.md
@@ -9,7 +9,7 @@ days:
 - date: 2022-02-22
   events:
     ? '**Lecture 11**{: .label .label-lecture } [Ordinary Least Squares (Multiple Linear Regression)](lecture/lec11)'
-    : '[Ch. 15.4](https://www.textbook.ds100.org/ch/15/linear_projection.html?highlight=linear%20projection), [19.1](https://www.textbook.ds100.org/ch/19/mult_model.html)'
+    : '[Ch. 15.4](https://www.textbook.ds100.org/ch/15/linear_projection.html), [19.1](https://www.textbook.ds100.org/ch/19/mult_model.html)'
 - date: 2022-02-24
   events:
     ? '**Midterm**{: .label .label-hw } Midterm 1 (8-10 pm) (No Lecture)'