diff --git a/Casks/harness-sync.rb b/Casks/harness-sync.rb
index 54749e3..6ff36cd 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 "0.31.5"
+  version "0.31.9"
 
   on_macos do
     on_arm do
-      sha256 "ff8bbb3b99a82c8db8026141313dbb44c9c0ed88ffcb3d0bf88331b5223c9a7f"
+      sha256 "d75d918f24759444837274a3e3249a253975642ab54e255d366e3c44d503cf5d"
       url "https://github.com/lukaszraczylo/harness-sync/releases/download/v#{version}/harness-sync-darwin-arm64.tar.gz"
     end
     on_intel do
-      sha256 "27676a70fd9676f4c4d02b118f6f6a7b3aa7ef00368b14c1dd6376e5ac757e49"
+      sha256 "e44d39801707363ae0081693858d63280e7aa9667f244452d4969a9abde8386e"
       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 "a479e6dc299b101b1a3fd860ba263e942e26d5fa69bd74862ee64c64c0c67d32"
+      sha256 "428002d35f2a83dbbdde03f4e1d6c3679df768ebc2829462006e8aa12e7000e1"
       url "https://github.com/lukaszraczylo/harness-sync/releases/download/v#{version}/harness-sync-linux-arm64.tar.gz"
     end
     on_intel do
-      sha256 "3fd7da3c43dd4f6f6f2a1a92dc46ae43fca873eabe5c37c8e1d1f40882a2a5cb"
+      sha256 "27c1d40e24c2143a54a18aefe66f3e9a69b161644be78bb40765216425afbe83"
       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