diff --git a/Casks/harness-sync.rb b/Casks/harness-sync.rb
index d62930c..b4cb748 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 "0.31.21"
+  version "0.31.23"
 
   on_macos do
     on_arm do
-      sha256 "9f9c78f187dbe637b4fcf8b087f29ce76c9525af360334ea45a1786969fdacb6"
+      sha256 "ceb41993ae5eda14ab70acec73eb88bc9261c4956524e534bd2e0a73f9cf2573"
       url "https://github.com/lukaszraczylo/harness-sync/releases/download/v#{version}/harness-sync-darwin-arm64.tar.gz"
     end
     on_intel do
-      sha256 "83f654e33d93740ed8c265ba38cc068f3196c0154843dbc2a92b440504a67dec"
+      sha256 "be1e263a53d2b1f92c38058d7ccb12b6f29c44d40fc5375e2ef21186d08cdd87"
       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 "e5f8a68cb0051189444456564ebecaa6c4db2d0772926c1be556c5a2afc53194"
+      sha256 "6e841c49d733bf586f1fd54c2c9a03066a157de572931f863465f8e22cb0291d"
       url "https://github.com/lukaszraczylo/harness-sync/releases/download/v#{version}/harness-sync-linux-arm64.tar.gz"
     end
     on_intel do
-      sha256 "2fd6e66498e5f2b113795685bef6dece1cfb7b1589ea9b2429e6c2201caffa86"
+      sha256 "941cee8ffac2525f15941861619008052a7e2505f0248bcee72c546980ab3cbe"
       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