diff --git a/mail/requirements.txt b/mail/requirements.txt
index d37b78f8..685af986 100644
--- a/mail/requirements.txt
+++ b/mail/requirements.txt
@@ -50,7 +50,7 @@ pbkdf2==1.3
 pbr==4.0.3
 peewee==3.2.5
 pexpect==4.2.1
-Pillow==4.1.1
+Pillow==9.0.0
 pipenv==11.10.0
 pkginfo==1.4.2
 psycopg2==2.7.4