diff --git a/requirements.txt b/requirements.txt
index d4c301a..d857a54 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ ipython==3.1.0
 matplotlib==1.5.2
 networkx==1.11
 numpy==1.14.5
-Pillow==3.3.1
+Pillow==9.3.0
 PyOpenGL==3.1.0
 pyparsing==2.1.8
 python-dateutil==2.5.3