diff --git a/requirements.txt b/requirements.txt
index 11dddec..124e6b4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ requests==2.19.1
 tensorflow==1.13.1
 Keras==2.2.2
 nltk==3.2.5
-Pillow==6.0.0
+Pillow==9.0.1
 nibabel==2.4.1
 skimage==0.0
 scikit_learn==0.21.2