diff --git a/book/snippets/nostr/swift/NostrSnippets/Package.swift b/book/snippets/nostr/swift/NostrSnippets/Package.swift
index 68eaf3f95..6693f8259 100644
--- a/book/snippets/nostr/swift/NostrSnippets/Package.swift
+++ b/book/snippets/nostr/swift/NostrSnippets/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version: 5.9
+// swift-tools-version: 5.5
 // The swift-tools-version declares the minimum version of Swift required to build this package.
 
 import PackageDescription