diff --git a/python/codes/flask/tutorial/requirements.txt b/python/codes/flask/tutorial/requirements.txt
index 83fab77..8fef08d 100644
--- a/python/codes/flask/tutorial/requirements.txt
+++ b/python/codes/flask/tutorial/requirements.txt
@@ -4,7 +4,7 @@ backcall==0.1.0
 click==6.7
 coverage==4.5.1
 decorator==4.3.0
-Flask==1.0
+Flask==2.3.2
 -e git+git@github.com:RosenLo/notes.git@a20cee2f46e6a2a6bf79091f16a721d76cf67cb7#egg=flaskr&subdirectory=python/codes/flask/tutorial
 ipython==7.16.3
 ipython-genutils==0.2.0