diff --git a/Package.swift b/Package.swift
index 0bf4ca40..5f4edd3a 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.0
+// swift-tools-version:5.3
 //===----------------------------------------------------------------------===//
 //
 // This source file is part of the DeviceKit open source project