diff --git a/dash-heroku-master/requirements.txt b/dash-heroku-master/requirements.txt
index a61c9df..7a7a5f7 100644
--- a/dash-heroku-master/requirements.txt
+++ b/dash-heroku-master/requirements.txt
@@ -129,7 +129,7 @@ parso==0.5.1
 patsy==0.5.1
 phik==0.9.8
 pickleshare==0.7.5
-Pillow==7.1.0
+Pillow==8.3.2
 plac==1.1.3
 plotly==4.3.0
 pluggy==0.12.0