diff --git a/requirements.txt b/requirements.txt
index db10de4..f75cbf5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,7 +26,7 @@ matplotlib==3.1.0
 more-itertools==7.0.0
 numpy==1.16.4
 packaging==19.0
-Pillow==6.2.0
+Pillow==9.0.1
 pluggy==0.12.0
 protobuf==3.8.0
 py==1.8.0