diff --git a/pyproject.toml b/pyproject.toml
index 5473673..c85826b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ Homepage = "https://github.com/tryterra/terra-client-python"
 
 [project.optional-dependencies]
 dev = ["nox==2024.4.15"]
-"dev.format" = ["ruff==0.6.2"]
+"dev.format" = ["ruff==0.6.9"]
 "dev.typecheck" = ["pyright==1.1.378"]
 "dev.test" = [
     "pytest>=8.3.2, <9",