diff --git a/Build/Newtonsoft.Json.nuspec b/Build/Newtonsoft.Json.nuspec
index ccfac19e..c827c01c 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>4.5.6</version>
+    <version>4.5.7</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 bc60a3a7..311ff166 100644
--- a/Build/build.ps1
+++ b/Build/build.ps1
@@ -1,7 +1,7 @@
 properties { 
-  $zipFileName = "Json45r6.zip"
+  $zipFileName = "Json45r7.zip"
   $majorVersion = "4.5"
-  $majorWithReleaseVersion = "4.5.6"
+  $majorWithReleaseVersion = "4.5.7"
   $version = GetVersion $majorWithReleaseVersion
   $signAssemblies = $false
   $signKeyPath = "D:\Development\Releases\newtonsoft.snk"