diff --git a/pyproject.toml b/pyproject.toml
index 678be0bae7..35f4bab8f8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ dependencies = [
     "cryptography~=41.0.1",
     "email-reply-parser~=0.5.12",
     "git-url-parse~=1.2.2",
-    "gunicorn~=20.1.0",
+    "gunicorn~=21.2.0",
     "html5lib~=1.1",
     "ipython~=8.10.0",
     "ldap3~=2.9",