diff --git a/requirements.txt b/requirements.txt
index 168ea77..bee53a7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ coverage==4.5.4
 cairosvg==2.5.1
 pytest==5.2.0
 imageio==2.5.0
-Pillow==8.3.2
+Pillow==9.3.0
 matplotlib==3.1.1
 svgwrite==1.3.1
 # PyClipper dependencies.