diff --git a/example/ExampleWebApplication/ExampleWebApplication.csproj b/example/ExampleWebApplication/ExampleWebApplication.csproj
index 570f4045..fd7afb4e 100644
--- a/example/ExampleWebApplication/ExampleWebApplication.csproj
+++ b/example/ExampleWebApplication/ExampleWebApplication.csproj
@@ -3,7 +3,7 @@
     <TargetFramework>netcoreapp2.1</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="IbanNet.DataAnnotations" Version="2.1.0-rc1-006" />
+    <PackageReference Include="IbanNet.DataAnnotations" Version="[2.1,4)" />
     <PackageReference Include="Microsoft.AspNetCore.All" />
 	<PackageReference Include="Microsoft.AspNetCore.Mvc.WebApiCompatShim" Version="2.1.1" />
 	<PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.1.0" />