diff --git a/README.md b/README.md
index 234c910..d56c7dd 100644
--- a/README.md
+++ b/README.md
@@ -15,9 +15,9 @@ Simple target runner for use in C# scripts.
 
 using static SimpleTargets;
 
-var targets = new Dictionary<string, Target>();
+var targets = new TargetDictionary();
 
-targets.Add("default", new Target(() => Console.WriteLine("Hello, world!")));
+targets.Add("default", () => Console.WriteLine("Hello, world!"));
 
 Run(Args, targets);
 ```
diff --git a/src/simple-targets-csharp.nuspec b/src/simple-targets-csharp.nuspec
index 75a1b1e..234b1b1 100644
--- a/src/simple-targets-csharp.nuspec
+++ b/src/simple-targets-csharp.nuspec
@@ -2,7 +2,7 @@
 <package >
   <metadata>
     <id>simple-targets-csharp</id>
-    <version>3.0.0</version>
+    <version>4.0.0</version>
     <authors>Adam Ralph, simple-targets-csharp contributors</authors>
     <licenseUrl>https://raw.githubusercontent.com/adamralph/simple-targets-csharp/master/LICENSE</licenseUrl>
     <projectUrl>https://github.com/adamralph/simple-targets-csharp</projectUrl>