diff --git a/WebsitePanel/Sources/WebsitePanel.Server.WPIService/WebsitePanel.Server.WPIService.csproj b/WebsitePanel/Sources/WebsitePanel.Server.WPIService/WebsitePanel.Server.WPIService.csproj
index 33355971..7ef83aa9 100644
--- a/WebsitePanel/Sources/WebsitePanel.Server.WPIService/WebsitePanel.Server.WPIService.csproj
+++ b/WebsitePanel/Sources/WebsitePanel.Server.WPIService/WebsitePanel.Server.WPIService.csproj
@@ -10,7 +10,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>WebsitePanel.Server.WPIService</RootNamespace>
     <AssemblyName>WebsitePanel.Server.WPIService</AssemblyName>
-    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
     <TargetFrameworkProfile>
     </TargetFrameworkProfile>
     <FileAlignment>512</FileAlignment>