diff --git a/one_more_layer_of_stacking/requirements.txt b/one_more_layer_of_stacking/requirements.txt
index f31621a..f1ce02a 100644
--- a/one_more_layer_of_stacking/requirements.txt
+++ b/one_more_layer_of_stacking/requirements.txt
@@ -4,7 +4,7 @@ matplotlib==3.0.2
 numpy==1.15.4
 opencv-python==3.4.4.19
 pandas==0.23.0
-Pillow==6.2.0
+Pillow==9.0.0
 scikit-image==0.13.1
 scikit-learn==0.19.1
 scipy==1.1.0