diff --git a/pyproject.toml b/pyproject.toml
index e1925db..867b001 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ dependencies = [
 ]
 
 [project.optional-dependencies]
-dev = ["ruff>=0.15,<0.16", "pytest"]
+dev = ["ruff>=0.15,<0.17", "pytest"]
 
 [project.scripts]
 protonshift = "protonshift.app:main"