diff --git a/Formula/r/ruff.rb b/Formula/r/ruff.rb
index 036ede2831c06..c7f5b19581730 100644
--- a/Formula/r/ruff.rb
+++ b/Formula/r/ruff.rb
@@ -1,19 +1,19 @@
 class Ruff < Formula
   desc "Extremely fast Python linter, written in Rust"
   homepage "https://docs.astral.sh/ruff/"
-  url "https://github.com/astral-sh/ruff/archive/refs/tags/0.12.8.tar.gz"
-  sha256 "09a56afc9603b8f72bffc57c483d3fad872215ce5a4b0a6e4b67fb562ebc5f3f"
+  url "https://github.com/astral-sh/ruff/archive/refs/tags/0.12.9.tar.gz"
+  sha256 "676e3c1fe6b73fa76273796a623c8e155e3426311aaa86ce0ebebea57c67dab3"
   license "MIT"
   head "https://github.com/astral-sh/ruff.git", branch: "main"
 
   bottle do
-    sha256 cellar: :any_skip_relocation, arm64_sequoia: "e48e831edc5a173608a4ee0693d1c07b4a1b66f2cd9f6ee231934b6e1b4ff68b"
-    sha256 cellar: :any_skip_relocation, arm64_sonoma:  "f93ff10b75a071f6314e240ba030782ddbcdc247ee1833d9dd5b983a4aa42325"
-    sha256 cellar: :any_skip_relocation, arm64_ventura: "8f897c299397a190f7c5afaebbed98e9e60a0218f5c6051e3a6be70c09d5eb29"
-    sha256 cellar: :any_skip_relocation, sonoma:        "711b4a05f4c93f0ad0238771255989c8d411fcf695e3d48b2dc8046ffea98775"
-    sha256 cellar: :any_skip_relocation, ventura:       "f8ec0b8b6846b5e9bbe9e145ec8992fbcaef420c49e0c1cfddba481e9f7d252e"
-    sha256 cellar: :any_skip_relocation, arm64_linux:   "44e187a49ea7f8393cb13f85d43678cdc65c12c0c9d912ec8a45c3d63258c905"
-    sha256 cellar: :any_skip_relocation, x86_64_linux:  "557df5248c0794fef6dbb1f2a62745ab3e1ec4fdf525a1006ee3a7b0d0b71ea2"
+    sha256 cellar: :any_skip_relocation, arm64_sequoia: "0f28c830d56b654a3c24b1fe206e19c83268b2dde87ae86688e41c9e91df6aea"
+    sha256 cellar: :any_skip_relocation, arm64_sonoma:  "bbad443fa17a25875aa1ab4b74a2cdf377cfa0d76e4be0d798620fcaaffb8c14"
+    sha256 cellar: :any_skip_relocation, arm64_ventura: "6246c060b5bdc5f00c3499f85b7fbe29a4f47522e1dcbe9e54dd099edbeda4b2"
+    sha256 cellar: :any_skip_relocation, sonoma:        "02e7eda11513563bf67d3954ab8abb54b8f83c49af021657b2a189b2c6794c3a"
+    sha256 cellar: :any_skip_relocation, ventura:       "2e13f9d52fb6ec1a2b8f6c5be02ea364b9aae0d70ac1f62cebe60c38ff5d0670"
+    sha256 cellar: :any_skip_relocation, arm64_linux:   "b842edbd1fbcf0d1c2391d087d9868115f381426ff153524662b1b68e6281a82"
+    sha256 cellar: :any_skip_relocation, x86_64_linux:  "c76a71fb1bc867340ec69eca57323d1985d66c04ab16c8c5914bab6bb6880a04"
   end
 
   depends_on "rust" => :build