diff --git a/Formula/f/fluent-bit.rb b/Formula/f/fluent-bit.rb
index 552e961a75765..d9714661a28b0 100644
--- a/Formula/f/fluent-bit.rb
+++ b/Formula/f/fluent-bit.rb
@@ -1,8 +1,8 @@
 class FluentBit < Formula
   desc "Fast and Lightweight Logs and Metrics processor"
   homepage "https://github.com/fluent/fluent-bit"
-  url "https://github.com/fluent/fluent-bit/archive/refs/tags/v4.2.2.tar.gz"
-  sha256 "5d8e642be576985ad8123609c32d5ac44a9d3dad9eafcdc14208622444b5a4f0"
+  url "https://github.com/fluent/fluent-bit/archive/refs/tags/v4.2.3.tar.gz"
+  sha256 "b2dae50fb7a00bbab5eb6d47f3bfc4d56c698d72d485d748cb326bfeaa7249fa"
   license "Apache-2.0"
   head "https://github.com/fluent/fluent-bit.git", branch: "master"
 
@@ -12,13 +12,12 @@ class FluentBit < Formula
   end
 
   bottle do
-    rebuild 1
-    sha256 cellar: :any,                 arm64_tahoe:   "3adf65a9576fbea4dfcbf159abfce1cbfd6a32dd52ebca23d4c4927d65a1cda5"
-    sha256 cellar: :any,                 arm64_sequoia: "74f91e8e1b52686a74c7e33f2818f0e28e3a1003d6e133a74e9cd18cf30f209e"
-    sha256 cellar: :any,                 arm64_sonoma:  "b2f7b84102140b41b596aee2a3807cdaa529e0a5151d79107328cc15e195d6b8"
-    sha256 cellar: :any,                 sonoma:        "52e8cb3397bbce6b21889aad864996e367e77c32d80b39b17d4d1a2ca290f76a"
-    sha256 cellar: :any_skip_relocation, arm64_linux:   "6cbe451fe2323b0fe5f7dd438761ff7ea4c2f6ccb81967ccc626126c778c3a9e"
-    sha256 cellar: :any_skip_relocation, x86_64_linux:  "f1dde513b2295154465d13ab6c9ac89d61c24a4698a656312abd5c49bf3cbcf8"
+    sha256 cellar: :any,                 arm64_tahoe:   "3d12b053b24178b5826f0fe6e7e03fe6a69f08e708430bfd68ca1df0d7b2748b"
+    sha256 cellar: :any,                 arm64_sequoia: "12a055212b801c2769c6ea96a16e96045fb506ed97796033072cf07ca88a1116"
+    sha256 cellar: :any,                 arm64_sonoma:  "6687d7e607e4a4ffeacf02a2caf4151f1442d6e80af5891d484b6291b05923b2"
+    sha256 cellar: :any,                 sonoma:        "e45e3707238df9eb432437dee266180629eefb132323800a527e70223dbdfd04"
+    sha256 cellar: :any_skip_relocation, arm64_linux:   "9a7432aca2ef9869eca928a76c884f9b842b5860e6d75f8050151be2f2a899ef"
+    sha256 cellar: :any_skip_relocation, x86_64_linux:  "1e6f807c6e160d1015e5a0db3db88bbb2ab200ac0fa8d5f13b47b6b0ea71628d"
   end
 
   depends_on "bison" => :build