diff --git a/requirements.txt b/requirements.txt
index 05b68c6..8b11b22 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 flask>=3.0
 flask-wtf>=1.2
 werkzeug>=3.1.8
-gunicorn>=21.0
+gunicorn>=26.0.0
 reportlab>=4.0
 qrcode[pil]>=8.2
 Pillow>=12.2.0