diff --git a/Package.swift b/Package.swift
index 9efd175..2de488f 100644
--- a/Package.swift
+++ b/Package.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:4.0
+// swift-tools-version:4.1
 
 import PackageDescription
 
@@ -16,6 +16,7 @@ let package = Package(
             path: "Flow"),
         .testTarget(
             name: "FlowTests",
-            dependencies: ["Flow"]),
+            dependencies: ["Flow"],
+            path: "FlowTests"),
     ]
 )