diff --git a/.travis.yml b/.travis.yml
index 197aa39..c9b8c66 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
 os: osx
-osx_image: xcode10
+osx_image: xcode10.2
 language: node_js
 node_js:
-  - 'node'
+  - '10'
+  - '8'
diff --git a/Package.swift b/Package.swift
index 8fb4493..65caa59 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,8 +1,11 @@
-// swift-tools-version:4.2
+// swift-tools-version:5.0
 import PackageDescription
 
 let package = Package(
   name: "ApertureCLI",
+  platforms: [
+    .macOS(.v10_12)
+  ],
   products: [
     .executable(
       name: "aperture",