diff --git a/Examples/xx-messenger/Package.swift b/Examples/xx-messenger/Package.swift
index a8f31a2d90dbace950600ac765369968e80a406f..1fe13d5231a9802b9a6be418428f9675316f88ce 100644
--- a/Examples/xx-messenger/Package.swift
+++ b/Examples/xx-messenger/Package.swift
@@ -2,14 +2,9 @@
 import PackageDescription
 
 let swiftSettings: [SwiftSetting] = [
-  .unsafeFlags(
-    [
-      // "-Xfrontend", "-warn-concurrency",
-      // "-Xfrontend", "-debug-time-function-bodies",
-      // "-Xfrontend", "-debug-time-expression-type-checking",
-    ],
-    .when(configuration: .debug)
-  ),
+  //.unsafeFlags(["-Xfrontend", "-warn-concurrency"], .when(configuration: .debug)),
+  //.unsafeFlags(["-Xfrontend", "-debug-time-function-bodies"], .when(configuration: .debug)),
+  //.unsafeFlags(["-Xfrontend", "-debug-time-expression-type-checking"], .when(configuration: .debug)),
 ]
 
 let package = Package(