diff --git a/.ci/package-mac.sh b/.ci/package-mac.sh
index 4c3935e..4c20669 100644
--- a/.ci/package-mac.sh
+++ b/.ci/package-mac.sh
@@ -47,3 +47,9 @@ cd output
 # Resign the package
 pkg_path=Squirrel-${SQUIRREL_VERSION}-rime-cantonese.pkg
 productsign --sign "Developer ID Installer: $APPLE_DEVELOPER_NAME ($APPLE_DEVELOPER_TEAM_ID)" Squirrel.pkg "$pkg_path"
+
+# Verify
+pkgutil --expand "$pkg_path" package
+cd package
+tar --xattrs -xzf Payload
+codesign -v -vv --deep --strict "Squirrel.app"