diff --git a/build.cake b/build.cake
index 276e933..b503980 100644
--- a/build.cake
+++ b/build.cake
@@ -36,9 +36,9 @@ if (isRunningOnGitHubActions)
     }
 }
 
-var buildDir = Directory("./src/Mages.Core/bin") + Directory(configuration) + Directory("netstandard2.0");
-var replDir = Directory("./src/Mages.Repl/bin") + Directory(configuration) + Directory("netcoreapp3.1");
-var installerDir = Directory("./src/Mages.Repl.Installer/bin") + Directory(configuration) + Directory("net45");
+var buildDir = Directory("./src/Mages.Core/bin") + Directory(configuration) + Directory("netstandard2.1");
+var replDir = Directory("./src/Mages.Repl/bin") + Directory(configuration) + Directory("net60");
+var installerDir = Directory("./src/Mages.Repl.Installer/bin") + Directory(configuration) + Directory("net50");
 var buildResultDir = Directory("./bin") + Directory(version);
 var nugetRoot = buildResultDir + Directory("nuget");
 var chocolateyRoot = buildResultDir + Directory("chocolatey");
@@ -123,7 +123,7 @@ Task("Copy-Files")
     .IsDependentOn("Build")
     .Does(() =>
     {
-        var nugetBin = nugetRoot + Directory("lib") + Directory("netstandard2.0");
+        var nugetBin = nugetRoot + Directory("lib") + Directory("netstandard2.1");
         CreateDirectory(nugetBin);
         CreateDirectory(squirrelBin);
         CreateDirectory(releaseDir);
@@ -268,7 +268,7 @@ Task("Publish-GitHub-Release")
             TargetCommitish = isPublish ? "main" : "devel"
         }).Result;
 
-        var target = nugetRoot + Directory("lib") + Directory("netstandard2.0");
+        var target = nugetRoot + Directory("lib") + Directory("netstandard2.1");
         var libPath = target + File("Mages.Core.dll");
         var releaseFiles = GetFiles(releaseDir.Path.FullPath + "/*");
 
diff --git a/src/Mages.Nuget.nuspec b/src/Mages.Nuget.nuspec
index 3216844..4b448e6 100644
--- a/src/Mages.Nuget.nuspec
+++ b/src/Mages.Nuget.nuspec
@@ -14,7 +14,7 @@
     <copyright>Copyright 2024, Florian Rappl.</copyright>
     <tags>interpreter mages expression scripting language mathematics performance</tags>
     <dependencies>
-      <group targetFramework="netstandard2.0"></group>
+      <group targetFramework="netstandard2.1"></group>
     </dependencies>
   </metadata>
 </package>