diff --git a/requirements.txt b/requirements.txt
index a42eb2b..1f61859 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ numpy==1.22.0
 obonet==0.2.5
 packaging==20.4
 pandas==1.1.2
-Pillow==9.0.1
+Pillow==9.3.0
 pyparsing==2.4.7
 python-dateutil==2.8.1
 pytz==2020.1