diff --git a/src/IF.Lastfm.Core/IF.Lastfm.Core.csproj b/src/IF.Lastfm.Core/IF.Lastfm.Core.csproj
index fc5d016..349c6ee 100644
--- a/src/IF.Lastfm.Core/IF.Lastfm.Core.csproj
+++ b/src/IF.Lastfm.Core/IF.Lastfm.Core.csproj
@@ -2,7 +2,7 @@
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
-    <MinimumVisualStudioVersion>10.0</MinimumVisualStudioVersion>
+    <MinimumVisualStudioVersion>11.0</MinimumVisualStudioVersion>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{3CF4B78F-8B48-49CB-942F-83DB13474A4F}</ProjectGuid>
@@ -13,8 +13,8 @@
     <DefaultLanguage>en-US</DefaultLanguage>
     <FileAlignment>512</FileAlignment>
     <ProjectTypeGuids>{786C830F-07A1-408B-BD7F-6EE04809D6DB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
-    <TargetFrameworkProfile>Profile104</TargetFrameworkProfile>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkProfile>Profile259</TargetFrameworkProfile>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
     <NuGetPackageImportStamp>fa1b7cf2</NuGetPackageImportStamp>