diff --git a/ms_ensemble/requirements.txt b/ms_ensemble/requirements.txt
index e9abb29..4911838 100644
--- a/ms_ensemble/requirements.txt
+++ b/ms_ensemble/requirements.txt
@@ -14,7 +14,7 @@ munch==2.5.0
 networkx==2.4
 numpy==1.18.5
 pandas==1.0.4
-Pillow==7.1.2
+Pillow==9.3.0
 pyparsing==2.4.7
 pyproj==2.6.1.post1
 python-dateutil==2.8.1