diff --git a/requirements.txt b/requirements.txt
index bdf36f8..acf2e37 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 python-barcode==0.14.0
 pyqrcode==1.2.1
-flask==2.2.3
+flask==3.1.3
 environs==9.5.0
 pypng==0.20220715.0
 Pillow==9.4.0