diff --git a/.gitignore b/.gitignore
index 0fb4c4d..81847ab 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,4 @@ Packages
 .DS_Store
 *.xcodeproj
 Package.pins
-
+Package.resolved
diff --git a/Package@swift-4.swift b/Package@swift-4.swift
new file mode 100644
index 0000000..fce8430
--- /dev/null
+++ b/Package@swift-4.swift
@@ -0,0 +1,20 @@
+// swift-tools-version:4.0
+import PackageDescription
+
+let package = Package(
+    name: "Multipart",
+    products: [
+        .library(name: "Multipart", targets: ["Multipart"]),
+        .library(name: "FormData", targets: ["FormData"]),
+    ],
+    dependencies: [
+        .package(url: "https://github.com/vapor/core.git", .upToNextMajor(from: "2.1.2")),
+        .package(url: "https://github.com/vapor/engine.git", .upToNextMajor(from: "2.2.0")),
+    ],
+    targets: [
+        .target(name: "Multipart", dependencies: ["Core", "HTTP"]),
+        .testTarget(name: "MultipartTests", dependencies: ["Multipart"]),
+        .target(name: "FormData", dependencies: ["Multipart", "Core"]),
+        .testTarget(name: "FormDataTests", dependencies: ["FormData"]),
+    ]
+)
diff --git a/circle.yml b/circle.yml
index c15e3fb..55985d4 100644
--- a/circle.yml
+++ b/circle.yml
@@ -1,10 +1,16 @@
 dependencies:
   override:
     - eval "$(curl -sL https://apt.vapor.sh)"
-    - sudo apt-get install vapor
+    - sudo apt-get install swift
     - sudo chmod -R a+rx /usr/
 test:
   override:
     - swift build
     - swift build -c release
     - swift test
+    - sudo apt-get remove swift
+    - sudo apt-get install swift-beta
+    - swift build
+    - swift build -c release
+    - swift test
+    
\ No newline at end of file