diff --git a/NLog.Web.AspNetCore.Tests/Properties/AssemblyInfo-test.cs b/NLog.Web.AspNetCore.Tests/Properties/AssemblyInfo-test.cs
new file mode 100644
index 00000000..97f073b7
--- /dev/null
+++ b/NLog.Web.AspNetCore.Tests/Properties/AssemblyInfo-test.cs
@@ -0,0 +1,14 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+
+// Setting ComVisible to false makes the types in this assembly not visible
+// to COM components.  If you need to access a type in this assembly from
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+[assembly: Xunit.CollectionBehavior(DisableTestParallelization = true)]
\ No newline at end of file
diff --git a/NLog.Web.Tests/Properties/AssemblyInfo-test.cs b/NLog.Web.Tests/Properties/AssemblyInfo-test.cs
index 53c2abfb..3ce1fa53 100644
--- a/NLog.Web.Tests/Properties/AssemblyInfo-test.cs
+++ b/NLog.Web.Tests/Properties/AssemblyInfo-test.cs
@@ -34,3 +34,5 @@
 // [assembly: AssemblyVersion("1.0.*")]
 [assembly: AssemblyVersion("1.2.3.0")]
 [assembly: AssemblyFileVersion("1.0.0.0")]
+
+[assembly: Xunit.CollectionBehavior(DisableTestParallelization = true)]
\ No newline at end of file
diff --git a/appveyor.yml b/appveyor.yml
index 0048d518..e4851530 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,3 +1,4 @@
+version: 4.5.0.{build}
 clone_folder: c:\projects\nlogweb
 configuration: Release
 image: Visual Studio 2017