diff --git a/requirements.txt b/requirements.txt
index b5453ae..b8548fa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ matplotlib==3.1.0
 #mkl-service==2.0.2
 numpy==1.16.4
 olefile==0.46
-Pillow==6.2.0
+Pillow==9.0.1
 pycparser==2.19
 pyOpenSSL==19.0.0
 pyparsing==2.4.0