diff --git a/src/Microsoft.Framework.Logging.Console/Internal/IConsole.cs b/src/Microsoft.Framework.Logging.Console/Internal/IConsole.cs
index 5b2b6902..6ee9fba1 100644
--- a/src/Microsoft.Framework.Logging.Console/Internal/IConsole.cs
+++ b/src/Microsoft.Framework.Logging.Console/Internal/IConsole.cs
@@ -1,4 +1,7 @@
-using System;
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
 
 namespace Microsoft.Framework.Logging.Console.Internal
 {
diff --git a/src/Microsoft.Framework.Logging.Console/LogConsole.cs b/src/Microsoft.Framework.Logging.Console/LogConsole.cs
index b1fa8864..669ef329 100644
--- a/src/Microsoft.Framework.Logging.Console/LogConsole.cs
+++ b/src/Microsoft.Framework.Logging.Console/LogConsole.cs
@@ -1,4 +1,7 @@
-using System;
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
 using System.IO;
 using Microsoft.Framework.Logging.Console.Internal;
 
diff --git a/src/Microsoft.Framework.Logging.Interfaces/ILogValues.cs b/src/Microsoft.Framework.Logging.Interfaces/ILogValues.cs
index 8f111441..5f9fad7b 100644
--- a/src/Microsoft.Framework.Logging.Interfaces/ILogValues.cs
+++ b/src/Microsoft.Framework.Logging.Interfaces/ILogValues.cs
@@ -1,4 +1,7 @@
-using System.Collections.Generic;
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System.Collections.Generic;
 
 namespace Microsoft.Framework.Logging
 {
diff --git a/src/Microsoft.Framework.Logging.Interfaces/LogFormatter.cs b/src/Microsoft.Framework.Logging.Interfaces/LogFormatter.cs
index dcd573fb..093ed1fb 100644
--- a/src/Microsoft.Framework.Logging.Interfaces/LogFormatter.cs
+++ b/src/Microsoft.Framework.Logging.Interfaces/LogFormatter.cs
@@ -1,4 +1,7 @@
-using System;
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
diff --git a/src/Microsoft.Framework.Logging.Serilog/NotNullAttribute.cs b/src/Microsoft.Framework.Logging.Serilog/NotNullAttribute.cs
deleted file mode 100644
index d92c1117..00000000
--- a/src/Microsoft.Framework.Logging.Serilog/NotNullAttribute.cs
+++ /dev/null
@@ -1,12 +0,0 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System;
-
-namespace JetBrains.Annotations
-{
-    [AttributeUsage(AttributeTargets.Parameter, AllowMultiple = false)]
-    internal sealed class NotNullAttribute : Attribute
-    {
-    }
-}
\ No newline at end of file
diff --git a/src/Microsoft.Framework.Logging.Serilog/SerilogLogger.cs b/src/Microsoft.Framework.Logging.Serilog/SerilogLogger.cs
index 8f3012d3..57e08d43 100644
--- a/src/Microsoft.Framework.Logging.Serilog/SerilogLogger.cs
+++ b/src/Microsoft.Framework.Logging.Serilog/SerilogLogger.cs
@@ -2,10 +2,9 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
-using JetBrains.Annotations;
-using Serilog.Events;
+using Microsoft.Framework.Internal;
 using Serilog.Core;
-
+using Serilog.Events;
 using SLogger = Serilog.ILogger;
 
 namespace Microsoft.Framework.Logging.Serilog
diff --git a/src/Microsoft.Framework.Logging.Serilog/SerilogLoggerFactoryExtensions.cs b/src/Microsoft.Framework.Logging.Serilog/SerilogLoggerFactoryExtensions.cs
index 537366ed..d95a2b7a 100644
--- a/src/Microsoft.Framework.Logging.Serilog/SerilogLoggerFactoryExtensions.cs
+++ b/src/Microsoft.Framework.Logging.Serilog/SerilogLoggerFactoryExtensions.cs
@@ -1,9 +1,9 @@
 // Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
-using Serilog;
+using Microsoft.Framework.Internal;
 using Microsoft.Framework.Logging.Serilog;
-using JetBrains.Annotations;
+using Serilog;
 
 namespace Microsoft.Framework.Logging
 {
diff --git a/src/Microsoft.Framework.Logging.Serilog/SerilogLoggerProvider.cs b/src/Microsoft.Framework.Logging.Serilog/SerilogLoggerProvider.cs
index 078ec6d2..eb531581 100644
--- a/src/Microsoft.Framework.Logging.Serilog/SerilogLoggerProvider.cs
+++ b/src/Microsoft.Framework.Logging.Serilog/SerilogLoggerProvider.cs
@@ -5,10 +5,10 @@
 #if ASPNET50
 using System.Runtime.Remoting;
 using System.Runtime.Remoting.Messaging;
+using Microsoft.Framework.Internal;
 #else
 using System.Threading;
 #endif
-using JetBrains.Annotations;
 using Serilog.Core;
 using Serilog.Events;
 
diff --git a/src/Microsoft.Framework.Logging.Serilog/project.json b/src/Microsoft.Framework.Logging.Serilog/project.json
index c86371a7..5e86986a 100644
--- a/src/Microsoft.Framework.Logging.Serilog/project.json
+++ b/src/Microsoft.Framework.Logging.Serilog/project.json
@@ -2,6 +2,7 @@
     "version": "1.0.0-*",
     "dependencies": {
         "Microsoft.Framework.Logging.Interfaces": "1.0.0-*",
+        "Microsoft.Framework.NotNullAttribute.Internal": { "type": "build", "version": "1.0.0-*" },
         "Serilog": "1.4.14"
     },
     "frameworks": {
diff --git a/src/Microsoft.Framework.Logging.TraceSource/TraceSourceFactoryExtensions.cs b/src/Microsoft.Framework.Logging.TraceSource/TraceSourceFactoryExtensions.cs
index 6597cec4..bd699360 100644
--- a/src/Microsoft.Framework.Logging.TraceSource/TraceSourceFactoryExtensions.cs
+++ b/src/Microsoft.Framework.Logging.TraceSource/TraceSourceFactoryExtensions.cs
@@ -1,4 +1,7 @@
-using System;
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using System;
 using System.Diagnostics;
 using Microsoft.Framework.Internal;
 
diff --git a/src/Microsoft.Framework.Logging/LoggingServiceCollectionExtensions.cs b/src/Microsoft.Framework.Logging/LoggingServiceCollectionExtensions.cs
index 6a69286c..5f2c4c25 100644
--- a/src/Microsoft.Framework.Logging/LoggingServiceCollectionExtensions.cs
+++ b/src/Microsoft.Framework.Logging/LoggingServiceCollectionExtensions.cs
@@ -1,4 +1,7 @@
-using Microsoft.Framework.Logging;
+// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
+using Microsoft.Framework.Logging;
 
 namespace Microsoft.Framework.DependencyInjection
 {