diff --git a/Package.swift b/Package.swift
index b01b622f..d1f42793 100755
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version: 5.5.0
+// swift-tools-version: 5.9.0
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription