diff --git a/Marechai/Marechai.csproj b/Marechai/Marechai.csproj
index 0000939f..40f70650 100644
--- a/Marechai/Marechai.csproj
+++ b/Marechai/Marechai.csproj
@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
     <TargetFramework>netcoreapp3.1</TargetFramework>
-    <Version>3.0.99.1556</Version>
+    <Version>4.0.0.1557</Version>
     <Company>Canary Islands Computer Museum</Company>
     <Copyright>Copyright © 2003-2020 Natalia Portillo</Copyright>
     <Product>Canary Islands Computer Museum Website</Product>