diff --git a/Common.csproj b/Common.csproj
index 8cc3c0c..cfb90f8 100644
--- a/Common.csproj
+++ b/Common.csproj
@@ -24,7 +24,7 @@
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
     <IsWebBootstrapper>false</IsWebBootstrapper>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.5.1</TargetFrameworkVersion>
     <SignAssembly>false</SignAssembly>
     <AssemblyOriginatorKeyFile>
     </AssemblyOriginatorKeyFile>