diff --git a/pyproject.toml b/pyproject.toml
index f2fb14f7bd..01d8aaa2b2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ dependencies = [
   'tinycss2 >=1.0.0',
   'cssselect2 >=0.1',
   'Pyphen >=0.9.1',
-  'Pillow >=4.0.0',
+  'Pillow >=9.1.0',
   'fonttools[woff] >=4.0.0',
 ]
 classifiers = [