diff --git a/Package.swift b/Package.swift
index a2ab6fe..14eb980 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version: 5.9
+// swift-tools-version: 6.1
 import PackageDescription
 
 let package = Package(
diff --git a/Sources/SkipZip/MiniZipLibrary.swift b/Sources/SkipZip/MiniZipLibrary.swift
index 191c74c..b01e41e 100644
--- a/Sources/SkipZip/MiniZipLibrary.swift
+++ b/Sources/SkipZip/MiniZipLibrary.swift
@@ -1,3 +1,4 @@
+// Copyright 2023–2026 Skip
 // SPDX-License-Identifier: MPL-2.0
 import Foundation
 import SkipFFI
@@ -183,7 +184,7 @@ extension unz_file_info64 : ZipEntryInfo {
 
 
 /// `MiniZipLibrary` is a Swift encapsulation of the MiniZip library
-internal final class MiniZipLibrary {
+internal final class MiniZipLibrary: Sendable {
     /// The singleton library instance, registered using JNA to map the Kotlin functions to their native equivalents
     static let instance = registerNatives(MiniZipLibrary(), frameworkName: "SkipZip", libraryName: "minizip")
 
diff --git a/Sources/SkipZip/RemoteZipReader.swift b/Sources/SkipZip/RemoteZipReader.swift
index 0b78736..90ce7ca 100644
--- a/Sources/SkipZip/RemoteZipReader.swift
+++ b/Sources/SkipZip/RemoteZipReader.swift
@@ -1,6 +1,9 @@
 // Copyright 2023–2026 Skip
 // SPDX-License-Identifier: MPL-2.0
 import Foundation
+#if canImport(FoundationNetworking)
+import FoundationNetworking
+#endif
 #if !SKIP
 import MiniZip
 #endif
diff --git a/Tests/SkipZipTests/RemoteZipReaderTests.swift b/Tests/SkipZipTests/RemoteZipReaderTests.swift
index 7c20857..1d85283 100644
--- a/Tests/SkipZipTests/RemoteZipReaderTests.swift
+++ b/Tests/SkipZipTests/RemoteZipReaderTests.swift
@@ -2,6 +2,9 @@
 // SPDX-License-Identifier: MPL-2.0
 import XCTest
 import Foundation
+#if canImport(FoundationNetworking)
+import FoundationNetworking
+#endif
 @testable import SkipZip
 
 #if !SKIP