diff --git a/requirements.txt b/requirements.txt
index b5507b3..1572c79 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ jws==0.1.3
 multidict==4.5.2
 numpy==1.17.0
 oauth2client==4.1.3
-Pillow==6.0.0
+Pillow==9.0.0
 protobuf==3.8.0
 pyasn1==0.4.5
 pyasn1-modules==0.2.5