diff --git a/covid-19-timelapse/requirements.txt b/covid-19-timelapse/requirements.txt
index 2e572de..8100349 100644
--- a/covid-19-timelapse/requirements.txt
+++ b/covid-19-timelapse/requirements.txt
@@ -12,7 +12,7 @@ dash-html-components==1.0.2
 dash-renderer==1.2.4
 dash-table==4.6.1
 fastavro==0.23.0
-Flask==1.1.1
+Flask==2.3.2
 Flask-Compress==1.4.0
 Flask-SeaSurf==0.2.2
 future==0.18.2