diff --git a/requirements.txt b/requirements.txt
index c7f0249..5167076 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ numpy==1.12.0
 scikit-learn==0.18.1
 nose==1.3.7
 matplotlib==1.5.3
-Pillow==3.4.2
+Pillow==9.3.0
 h5py==2.6.0
 scikit-image==0.12.3
 tqdm==4.10.0