diff --git a/subjects/ai/data-wrangling/README.md b/subjects/ai/data-wrangling/README.md
index 80a6c7fa..b0181a76 100644
--- a/subjects/ai/data-wrangling/README.md
+++ b/subjects/ai/data-wrangling/README.md
@@ -24,6 +24,7 @@ Data wrangling is one of the crucial tasks in data science and analysis which in
 - Python 3.x
 - NumPy
 - Pandas
+- Matplotlib
 - Jupyter or JupyterLab
 - Tabulate