diff --git a/Package@swift-5.swift b/Package@swift-5.swift
index 4ece837e27..84f44e3ed3 100644
--- a/Package@swift-5.swift
+++ b/Package@swift-5.swift
@@ -1,5 +1,4 @@
-// swift-tools-version: 5.9
-
+// swift-tools-version: 5.8
 import Foundation
 import PackageDescription
 import CompilerPluginSupport