diff --git a/.swift-version b/.swift-version
new file mode 100644
index 0000000..819e07a
--- /dev/null
+++ b/.swift-version
@@ -0,0 +1 @@
+5.0
diff --git a/Package.swift b/Package.swift
index 15c45ee..10122bf 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:4.2
+// swift-tools-version:5.0
 import PackageDescription
 
 let package = Package(
diff --git a/Sources/Jobs/Job.swift b/Sources/Jobs/Job.swift
index e64c709..e562122 100644
--- a/Sources/Jobs/Job.swift
+++ b/Sources/Jobs/Job.swift
@@ -48,7 +48,7 @@ public extension Job {
     }
     
     /// See `AnyJob.anyDequeue`
-    public func anyDequeue(_ context: JobContext, _ storage: JobStorage) -> EventLoopFuture<Void> {
+    func anyDequeue(_ context: JobContext, _ storage: JobStorage) -> EventLoopFuture<Void> {
         do {
             let data = try JSONDecoder().decode(Data.self, from: storage.data)
             return self.dequeue(context, data)
diff --git a/circle.yml b/circle.yml
index 873d00b..12e5aee 100644
--- a/circle.yml
+++ b/circle.yml
@@ -3,14 +3,14 @@ version: 2
 jobs:
   linux:
     docker:
-      - image: swift:4.2
+      - image: vapor/swift:5.0
     steps:
       - checkout
       - run: swift build
       - run: swift test
   linux-redis-driver:
     docker:
-      - image: swift:4.2
+      - image: vapor/swift:5.0
       - image: redis:5.0
     steps:
       - run: 
@@ -25,7 +25,7 @@ jobs:
 
   linux-release:
     docker:
-      - image: swift:4.2
+      - image: vapor/swift:5.0
     steps:
       - checkout
       - run: swift build