diff --git a/pyproject.toml b/pyproject.toml
index 164ded7..629988d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ Repository = "https://github.com/mareuter/lct-web"
 [project.optional-dependencies]
 dev = [
     "lct-web[lint,test]",
-    "tox==4.49.1"
+    "tox==4.51.0"
 ]
 test = [
     "coverage[toml]==7.13.5",