diff --git a/pyproject.toml b/pyproject.toml
index 631fb33..722a4a0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ description = "Standalone directory integration service – MicroSIP JSON & Yeal
 requires-python = ">=3.10"
 dependencies = [
     "flask>=3.1.3",
-    "gunicorn>=22.0",
+    "gunicorn>=25.3.0",
     "requests==2.33.0",
     "cryptography==46.0.7",
 ]