diff --git a/requirements.txt b/requirements.txt
index 2fa6f5f..15cb7ac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 sphinx==2.1.0
 sphinx-rtd-theme==0.4.3
-Pillow==6.2.0
+Pillow==9.3.0
 pylint==2.3.1
 recommonmark==0.5.0
 numpy