diff --git a/Formula/rulesync.rb b/Formula/rulesync.rb
index 73809f7b8..ce9e5a131 100644
--- a/Formula/rulesync.rb
+++ b/Formula/rulesync.rb
@@ -7,28 +7,28 @@
 class Rulesync < Formula
   desc "Unified AI rules management CLI that generates config files for AI dev tools"
   homepage "https://github.com/dyoshikawa/rulesync"
-  version "43.4.1"
+  version "43.4.2"
   license "MIT"
 
   on_macos do
     on_arm do
       url "https://github.com/dyoshikawa/rulesync/releases/download/v#{version}/rulesync-darwin-arm64"
-      sha256 "b8e2ac46d95d8394e3f9f98fba4926120f17a7df3e98511b51dcb5585b22464d"
+      sha256 "25c0097b2c3efbfb8f52104580891d3d82df857accee96f0070f6bfbf6a91fa6"
     end
     on_intel do
       url "https://github.com/dyoshikawa/rulesync/releases/download/v#{version}/rulesync-darwin-x64"
-      sha256 "4c32c2c472dc51f0b4b91ad71bde5248c55e9b92458709d81a2674f1807d05e2"
+      sha256 "1e6598d5818885a091be6ea35d9e6208c0d6f04e5055fc58d19673ac432ffb1c"
     end
   end
 
   on_linux do
     on_arm do
       url "https://github.com/dyoshikawa/rulesync/releases/download/v#{version}/rulesync-linux-arm64"
-      sha256 "105c6f026043555f17813c5765a6bd1856971ada4fd514afa5028ccc526ac9e9"
+      sha256 "dbd925b533ce6d84a6c7c9197a197a1ab067392f4a2dcc6fcf9d2a9543b24797"
     end
     on_intel do
       url "https://github.com/dyoshikawa/rulesync/releases/download/v#{version}/rulesync-linux-x64"
-      sha256 "87ba7276bccd855f5cb986c0c8fac5301dc863fdee3bead9702d1ca01bf79e91"
+      sha256 "1da11a1674a0b133687700056b9aeeaa1c48c087f6eebe451e7be4c7d40cbf7a"
     end
   end