diff --git a/ReadSharp.Tests/Properties/AssemblyInfo.cs b/ReadSharp.Tests/Properties/AssemblyInfo.cs
index 1884870..dc2fc8d 100644
--- a/ReadSharp.Tests/Properties/AssemblyInfo.cs
+++ b/ReadSharp.Tests/Properties/AssemblyInfo.cs
@@ -1,5 +1,4 @@
 using System.Reflection;
-using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 
 // General Information about an assembly is controlled through the following 
diff --git a/ReadSharp/Properties/AssemblyInfo.cs b/ReadSharp/Properties/AssemblyInfo.cs
index cc36c92..03885f1 100644
--- a/ReadSharp/Properties/AssemblyInfo.cs
+++ b/ReadSharp/Properties/AssemblyInfo.cs
@@ -22,5 +22,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.0")]
-[assembly: AssemblyFileVersion("1.0.0")]
\ No newline at end of file
+[assembly: AssemblyVersion("4.0.0")]
+[assembly: AssemblyFileVersion("4.0.0")]
\ No newline at end of file
diff --git a/ReadSharp/Reader.cs b/ReadSharp/Reader.cs
index 8f21508..7294c92 100644
--- a/ReadSharp/Reader.cs
+++ b/ReadSharp/Reader.cs
@@ -59,7 +59,7 @@ namespace ReadSharp
       _httpClient.DefaultRequestHeaders.TryAddWithoutValidation("Accept-Encoding", "gzip,deflate");
 
       // add user agent
-      _httpClient.DefaultRequestHeaders.TryAddWithoutValidation("User-Agent", string.Format(_userAgent, "; ReadSharp/3.0"));
+      _httpClient.DefaultRequestHeaders.TryAddWithoutValidation("User-Agent", string.Format(_userAgent, "; ReadSharp/4.0"));
     }