diff --git a/Casks/kportal.rb b/Casks/kportal.rb
index 8c78338..2e8d804 100644
--- a/Casks/kportal.rb
+++ b/Casks/kportal.rb
@@ -1,24 +1,24 @@
 # This file was generated by GoReleaser. DO NOT EDIT.
 cask "kportal" do
-  version "0.13.12"
+  version "0.13.13"
 
   on_macos do
     on_arm do
-      sha256 "68e54d929215f990838c20dcdee3bca621e4695a21e1863a35034aa883dc9c9f"
+      sha256 "f94aea1a7609ea3dd9a3c55eb884188cfbbc12a3587e3461216f8884ddc914c3"
       url "https://github.com/lukaszraczylo/kportal/releases/download/v#{version}/kportal-#{version}-darwin-arm64.tar.gz"
     end
     on_intel do
-      sha256 "007dc103c166ce739758d52d8f97a588901124c24bb9fe3e4b9ae6d72531207b"
+      sha256 "963ba08f0504d60631e134da1e116333b96405f2de5b317331ef3b15af85fadb"
       url "https://github.com/lukaszraczylo/kportal/releases/download/v#{version}/kportal-#{version}-darwin-amd64.tar.gz"
     end
   end
   on_linux do
     on_arm do
-      sha256 "a42568ab97b5a07d7a2f744a408e9999e80a26dc328dae320b7834e45d860f51"
+      sha256 "9c3aee053f5b3d2fa9be770eb044aa8b964568cf5260a1aa16d609454a0f0a51"
       url "https://github.com/lukaszraczylo/kportal/releases/download/v#{version}/kportal-#{version}-linux-arm64.tar.gz"
     end
     on_intel do
-      sha256 "b346140178c8c07e87f9c618ab8a5345e01ce51934d2032a05a1f640c248f484"
+      sha256 "5e5930b311d05419a50d72740660eb3aafa70d1049684af32f78ecdd83959a18"
       url "https://github.com/lukaszraczylo/kportal/releases/download/v#{version}/kportal-#{version}-linux-amd64.tar.gz"
     end
   end
@@ -33,9 +33,10 @@ cask "kportal" do
 
   binary "kportal"
 
-  postflight_steps do
-    on_macos do
-      run "/usr/bin/xattr", args: ["-dr", "com.apple.quarantine", "{{staged_path}}/kportal"]
+  postflight do
+    if OS.mac?
+      system_command "/usr/bin/xattr",
+                     args: ["-dr", "com.apple.quarantine", "#{staged_path}/kportal"]
     end
   end