diff --git a/v_2.1.2/requirements.txt b/v_2.1.2/requirements.txt
index b11ca12..2152b8d 100644
--- a/v_2.1.2/requirements.txt
+++ b/v_2.1.2/requirements.txt
@@ -1,6 +1,6 @@
 click==7.1.2
 cycler==0.10.0
-Flask==1.1.2
+Flask==2.3.2
 itsdangerous==1.1.0
 Jinja2==2.11.3
 kiwisolver==1.3.1