diff --git a/requirements.txt b/requirements.txt
index 8503eed..3637a83 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 Cython==0.29
 matplotlib==3.0.2
 opencv-python==3.4.3.18
-Pillow==4.3.0
+Pillow==9.3.0
 scikit-image==0.14.2
 scikit-learn==0.20.0
 scipy==1.0.0