diff --git a/server/pyproject.toml b/server/pyproject.toml
index e5dd0710..329f8d32 100644
--- a/server/pyproject.toml
+++ b/server/pyproject.toml
@@ -34,7 +34,7 @@ certgrinderd = "certgrinderd.certgrinderd:main"
 
 [project.optional-dependencies]
 dev = ["twine == 5.0.0", "pre-commit == 3.7.1", "setuptools-scm == 8.0.4", "build==1.1.1"]
-test = ["pytest == 8.1.1", "pytest-cov==5.0.0", "tox == 4.14.1"]
+test = ["pytest == 8.1.1", "pytest-cov==5.0.0", "tox == 4.15.1"]
 docs = ["Sphinx==7.2.6", "sphinx-rtd-theme==2.0.0", "sphinx-argparse==0.4.0"]
 
 [project.urls]