diff --git a/requirements.txt b/requirements.txt
index e5bc836..c56a3d5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -118,7 +118,7 @@ pathlib2==2.3.2
 patsy==0.5.0
 pep8==1.7.1
 pickleshare==0.7.4
-Pillow==5.1.0
+Pillow==9.0.1
 pkginfo==1.4.2
 pluggy==0.6.0
 ply==3.11