diff --git a/requirements.txt b/requirements.txt
index 4122cf1..caf3be5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 Django==2.2.5
 fpdf==1.7.2
 numpy==1.17.1
-Pillow==6.1.0
+Pillow==9.0.0
 pydicom==1.3.0
 pynetdicom==1.4.1
 pytz==2018.5