diff --git a/Build/Newtonsoft.Json.nuspec b/Build/Newtonsoft.Json.nuspec
index 13268bd0..248450c2 100644
--- a/Build/Newtonsoft.Json.nuspec
+++ b/Build/Newtonsoft.Json.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
   <metadata>
     <id>Newtonsoft.Json</id>
-    <version>4.5.3</version>
+    <version>4.5.4</version>
     <title>Json.NET</title>
     <description>Json.NET is a popular high-performance JSON framework for .NET</description>
     <authors>James Newton-King</authors>
diff --git a/Build/build.ps1 b/Build/build.ps1
index 6ed9db75..a8dd3b4e 100644
--- a/Build/build.ps1
+++ b/Build/build.ps1
@@ -1,7 +1,7 @@
 properties { 
-  $zipFileName = "Json45r3.zip"
+  $zipFileName = "Json45r4.zip"
   $majorVersion = "4.5"
-  $majorWithReleaseVersion = "4.5.3"
+  $majorWithReleaseVersion = "4.5.4"
   $version = GetVersion $majorWithReleaseVersion
   $signAssemblies = $false
   $signKeyPath = "D:\Development\Releases\newtonsoft.snk"