diff --git a/requirements.txt b/requirements.txt
index b5cee8a..668d347 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Flask==1.1.1
+Flask==2.3.2
 Flask-Classful==0.14.2
 Flask-HTTPAuth==3.3.0
 future==0.16.0; python_version < '3.0'