diff --git a/requirements.txt b/requirements.txt
index 0666f93..a3ade17 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # This file may be used to create an environment using:
 # $ conda create --name <env> --file <this file>
 # platform: linux-64
-flask==1.0.2
+flask==2.3.2
 numpy>=1.15.0
 scipy>=1.1.0
 pandas>=0.23.3