diff --git a/.ci/package-mac.sh b/.ci/package-mac.sh
index f38493d..cbfeeb3 100644
--- a/.ci/package-mac.sh
+++ b/.ci/package-mac.sh
@@ -20,7 +20,7 @@ pkgutil --expand Squirrel-${SQUIRREL_VERSION}.pkg package
 pushd package
 
 # Extract the application
-tar -xzf Payload
+cat Payload | gunzip -dc | cpio -i
 pushd Squirrel.app/Contents
 
 # Remove all default rime schemas but keep opencc data and app config