diff --git a/AdvancedBilling.sln b/AdvancedBilling.sln
index 68ad2095..7c22534f 100644
--- a/AdvancedBilling.sln
+++ b/AdvancedBilling.sln
@@ -2,7 +2,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26430.14
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AdvancedBilling.Standard", "AdvancedBilling.Standard/AdvancedBilling.Standard.csproj", "{363fcc0d-2311-4cb7-b2cf-82d69538b76c}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AdvancedBilling.Standard", "AdvancedBilling.Standard/AdvancedBilling.Standard.csproj", "{5856bb1d-340a-416b-a313-eef8ab4f51ba}"
 EndProject
 Global
     GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -10,10 +10,10 @@ Global
         Release|Any CPU = Release|Any CPU
     EndGlobalSection
     GlobalSection(ProjectConfigurationPlatforms) = postSolution
-        {363fcc0d-2311-4cb7-b2cf-82d69538b76c}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-        {363fcc0d-2311-4cb7-b2cf-82d69538b76c}.Debug|Any CPU.Build.0 = Debug|Any CPU
-        {363fcc0d-2311-4cb7-b2cf-82d69538b76c}.Release|Any CPU.ActiveCfg = Release|Any CPU
-        {363fcc0d-2311-4cb7-b2cf-82d69538b76c}.Release|Any CPU.Build.0 = Release|Any CPU
+        {5856bb1d-340a-416b-a313-eef8ab4f51ba}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+        {5856bb1d-340a-416b-a313-eef8ab4f51ba}.Debug|Any CPU.Build.0 = Debug|Any CPU
+        {5856bb1d-340a-416b-a313-eef8ab4f51ba}.Release|Any CPU.ActiveCfg = Release|Any CPU
+        {5856bb1d-340a-416b-a313-eef8ab4f51ba}.Release|Any CPU.Build.0 = Release|Any CPU
     EndGlobalSection
     GlobalSection(SolutionProperties) = preSolution
         HideSolutionNode = FALSE