diff --git a/requirements.txt b/requirements.txt
index 6f52ae3..789f222 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,4 @@ Pillow==6.0.0
 cryptography==2.8
 PyYAML==5.1
 Jinja2==2.10.0
-Flask==1.0.0
+Flask==3.1.3