diff --git a/icat/requirements.txt b/icat/requirements.txt
index fada479..31c5e88 100644
--- a/icat/requirements.txt
+++ b/icat/requirements.txt
@@ -1,5 +1,5 @@
 matplotlib==3.2.2
-Pillow==8.4.0
+Pillow==9.3.0
 python-dateutil==2.8.1
 requests==2.24.0
 jupyter==1.0.0