diff --git a/requirements.txt b/requirements.txt
index fe8d009..ee9035c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ kiwisolver==1.1.0
 matplotlib==3.1.2
 networkx==2.4
 numpy==1.17.4
-Pillow==6.2.1
+Pillow==9.3.0
 pyparsing==2.4.5
 python-dateutil==2.8.1
 PyWavelets==1.1.1