diff --git a/MakeYourOwnPythonWheel/requirements.txt b/MakeYourOwnPythonWheel/requirements.txt
index 1e2ef9f..2efbd6c 100644
--- a/MakeYourOwnPythonWheel/requirements.txt
+++ b/MakeYourOwnPythonWheel/requirements.txt
@@ -8,7 +8,7 @@ nbconvert
 networkx
 numpy==1.15.4
 pandas
-Pillow==5.2.0
+Pillow==9.0.1
 pydot==1.4.1
 pyOpenSSL==18.0.0
 scikit-learn