diff --git a/README.md b/README.md
index 493e6850394..fd3214d7713 100644
--- a/README.md
+++ b/README.md
@@ -9,3 +9,7 @@
 Teaching Assistant Assistant (TAA) is a desktop app for managing teaching assistant activities, optimized for use via a Command Line Interface (CLI) while still having the benefits of a Graphical User Interface (GUI). If you can type fast, TAA can get your teaching assistant tasks done faster than traditional GUI apps.
 
 This project is based on the AddressBook-Level3 project created by the [SE-EDU initiative](https://se-education.org).
+
+##Acknowledgements
+
+This project uses [Apache Commons CSV](https://commons.apache.org/proper/commons-csv/) under [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0)
diff --git a/docs/team/williamhaiweigu.md b/docs/team/williamhaiweigu.md
index ed60d887a81..4dbfc7370ae 100644
--- a/docs/team/williamhaiweigu.md
+++ b/docs/team/williamhaiweigu.md
@@ -71,3 +71,7 @@ changes: [#108, #203, #221, #231, #232, #241](https://github.com/AY2223S2-CS2103
 
 Reported [7 issues](https://github.com/WilliamHaiweiGu/ped/issues) to [W16](https://github.com/AY2223S2-CS2103-W16-3/tp)
 .
+
+##Acknowledgements
+
+This project uses [Apache Commons CSV](https://commons.apache.org/proper/commons-csv/) under [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0)