diff --git a/Casks/harness-sync.rb b/Casks/harness-sync.rb
index 99dd7c7..f707b2c 100644
--- a/Casks/harness-sync.rb
+++ b/Casks/harness-sync.rb
@@ -1,24 +1,24 @@
 # This file was generated by GoReleaser. DO NOT EDIT.
 cask "harness-sync" do
-  version "0.31.27"
+  version "0.31.29"
 
   on_macos do
     on_arm do
-      sha256 "c0522e7e79b0be0d00d95ecda7d163441b7240ebe2ea256bc2cd5f5d5976142b"
+      sha256 "78fed3c28cffe4da55e9e6cc9fb0b859fd6452165567ecba2ac9b729ce45a78b"
       url "https://github.com/lukaszraczylo/harness-sync/releases/download/v#{version}/harness-sync-darwin-arm64.tar.gz"
     end
     on_intel do
-      sha256 "da30977f1438bbb8e783e72f8ec4122079e09e9fedb913169b673fba114f4354"
+      sha256 "4ae138ef7f7f589c469f861b4a5a1f19e394f3cb917af1e43e0f924d81dfaa1d"
       url "https://github.com/lukaszraczylo/harness-sync/releases/download/v#{version}/harness-sync-darwin-amd64.tar.gz"
     end
   end
   on_linux do
     on_arm do
-      sha256 "47aca8ec9fdbd2e9f06f1e0b1fd729e0daf4efe76c4da46822f8f3ac2c00bb50"
+      sha256 "86ca082d3d070e0288cc746f3160b8049679c3d2713fb2008ba730ae5911dc9b"
       url "https://github.com/lukaszraczylo/harness-sync/releases/download/v#{version}/harness-sync-linux-arm64.tar.gz"
     end
     on_intel do
-      sha256 "4597bc603117835722000d6421377961ff8b14cd9bac7e5711556339299463c0"
+      sha256 "d92c532ddda8c089d7db0aba53c89109fdce14a601e7852ec72fa5bf32ec0e6f"
       url "https://github.com/lukaszraczylo/harness-sync/releases/download/v#{version}/harness-sync-linux-amd64.tar.gz"
     end
   end
@@ -33,9 +33,10 @@ cask "harness-sync" do
 
   binary "harness-sync"
 
-  postflight_steps do
-    on_macos do
-      run "/usr/bin/xattr", args: ["-dr", "com.apple.quarantine", "{{staged_path}}/harness-sync"]
+  postflight do
+    if OS.mac?
+      system_command "/usr/bin/xattr",
+                     args: ["-dr", "com.apple.quarantine", "#{staged_path}/harness-sync"]
     end
   end