diff --git a/requirements.txt b/requirements.txt
index 3a95bc5..38624de 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ numpy==1.22.0
 packaging==20.9
 pandas==1.2.4
 pathtools==0.1.2
-Pillow==8.2.0
+Pillow==9.0.1
 pooch==1.3.0
 promise==2.3
 protobuf==3.15.8