diff --git a/requirements.txt b/requirements.txt
index 9c465e1..6e4c440 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -149,7 +149,7 @@ patsy==0.5.1
 pep8==1.7.1
 pexpect==4.7.0
 pickleshare==0.7.5
-Pillow==5.4.1
+Pillow==9.0.1
 pkginfo==1.5.0.1
 plotly==3.8.1
 pluggy==0.9.0