diff --git a/requirements.txt b/requirements.txt
index 58df06f..4c713ab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ msgpack-python==0.5.6
 mysqlclient==1.3.12
 oauthlib==2.0.4
 olefile==0.44
-Pillow==4.2.1
+Pillow==9.0.1
 pycodestyle==2.3.1
 pyflakes==1.5.0
 PyHamcrest==1.9.0