diff --git a/requirements.txt b/requirements.txt
index 2336e82..04dea4c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 flask>=3.0
-gunicorn>=21.0
+gunicorn>=25.3.0
 requests>=2.31
 openpyxl>=3.1
 urllib3>=2.0