diff --git a/src/csharp/Grpc.Auth/Grpc.Auth.nuspec b/src/csharp/Grpc.Auth/Grpc.Auth.nuspec
index 171259d18d11f9283abe596e5ea5365447614e35..e7a538b21b1099fdb6b2d8869bac5845fcbe2bbf 100644
--- a/src/csharp/Grpc.Auth/Grpc.Auth.nuspec
+++ b/src/csharp/Grpc.Auth/Grpc.Auth.nuspec
@@ -5,19 +5,19 @@
     <title>gRPC C# Auth</title>
     <summary>Auth library for C# implementation of gRPC - an RPC library and framework</summary>
     <description>Auth library for C# implementation of gRPC - an RPC library and framework. See project site for more info.</description>
-    <version>0.5.0</version>
+    <version>0.5.1</version>
     <authors>Google Inc.</authors>
     <owners>grpc-packages</owners>
     <licenseUrl>https://github.com/grpc/grpc/blob/master/LICENSE</licenseUrl>
     <projectUrl>https://github.com/grpc/grpc</projectUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <releaseNotes>Release 0.5.0 of gRPC C#</releaseNotes>
+    <releaseNotes>Release 0.5.1 of gRPC C#</releaseNotes>
     <copyright>Copyright 2015, Google Inc.</copyright>
     <tags>gRPC RPC Protocol HTTP/2 Auth OAuth2</tags>
 	<dependencies>
 	  <dependency id="BouncyCastle" version="1.7.0" />
 	  <dependency id="Google.Apis.Auth" version="1.9.1" />
-	  <dependency id="Grpc.Core" version="0.5.0" />
+	  <dependency id="Grpc.Core" version="0.5.1" />
     </dependencies>
   </metadata>
   <files>
diff --git a/src/csharp/Grpc.Core/Grpc.Core.nuspec b/src/csharp/Grpc.Core/Grpc.Core.nuspec
index 42eb90c9a3dc177cc0473590b018f1da60bf7daa..629b978fdfc8a00b25e4261aebd33215d7e25ebd 100644
--- a/src/csharp/Grpc.Core/Grpc.Core.nuspec
+++ b/src/csharp/Grpc.Core/Grpc.Core.nuspec
@@ -5,19 +5,19 @@
     <title>gRPC C# Core</title>
     <summary>Core C# implementation of gRPC - an RPC library and framework</summary>
     <description>Core C# implementation of gRPC - an RPC library and framework. See project site for more info.</description>
-    <version>0.5.0</version>
+    <version>0.5.1</version>
     <authors>Google Inc.</authors>
     <owners>grpc-packages</owners>
     <licenseUrl>https://github.com/grpc/grpc/blob/master/LICENSE</licenseUrl>
     <projectUrl>https://github.com/grpc/grpc</projectUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <releaseNotes>Release 0.5.0 of gRPC C#</releaseNotes>
+    <releaseNotes>Release 0.5.1 of gRPC C#</releaseNotes>
     <copyright>Copyright 2015, Google Inc.</copyright>
     <tags>gRPC RPC Protocol HTTP/2</tags>
 	<dependencies>
 	  <dependency id="Microsoft.Bcl.Immutable" version="1.0.34" />
 	  <dependency id="Ix-Async" version="1.2.3" />
-	  <dependency id="grpc.native.csharp_ext" version="0.9.0.0" />
+	  <dependency id="grpc.native.csharp_ext" version="0.9.1" />
     </dependencies>
   </metadata>
   <files>
diff --git a/src/csharp/Grpc.Tools.nuspec b/src/csharp/Grpc.Tools.nuspec
index 155c2ef8c44d08d849ad6bf37bb847bd6202517c..913d4c8f4bd8aa98105a9cf147e17135246ff2d5 100644
--- a/src/csharp/Grpc.Tools.nuspec
+++ b/src/csharp/Grpc.Tools.nuspec
@@ -5,13 +5,13 @@
     <title>gRPC C# Tools</title>
     <summary>Tools for C# implementation of gRPC - an RPC library and framework</summary>
     <description>Precompiled Windows binaries for generating protocol buffer messages and gRPC client/server code</description>
-    <version>0.5.0</version>
+    <version>0.5.1</version>
     <authors>Google Inc.</authors>
     <owners>grpc-packages</owners>
     <licenseUrl>https://github.com/grpc/grpc/blob/master/LICENSE</licenseUrl>
     <projectUrl>https://github.com/grpc/grpc</projectUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <releaseNotes>protoc.exe - protocol buffer compiler v3.0.0-alpha-3; grpc_csharp_plugin.exe - gRPC C# protoc plugin version 0.5.0</releaseNotes>
+    <releaseNotes>protoc.exe - protocol buffer compiler v3.0.0-alpha-3; grpc_csharp_plugin.exe - gRPC C# protoc plugin version 0.5.1</releaseNotes>
     <copyright>Copyright 2015, Google Inc.</copyright>
     <tags>gRPC RPC Protocol HTTP/2</tags>
   </metadata>
diff --git a/src/csharp/Grpc.nuspec b/src/csharp/Grpc.nuspec
index 263e016339eb0aa60e62440450db1c8ac9b13372..cf4c74fa2d4724851bcd0d1d05064f18848c3f3a 100644
--- a/src/csharp/Grpc.nuspec
+++ b/src/csharp/Grpc.nuspec
@@ -5,17 +5,17 @@
     <title>gRPC C#</title>
     <summary>C# implementation of gRPC - an RPC library and framework</summary>
     <description>C# implementation of gRPC - an RPC library and framework. See project site for more info.</description>
-    <version>0.5.0.1</version>
+    <version>0.5.1</version>
     <authors>Google Inc.</authors>
     <owners>grpc-packages</owners>
     <licenseUrl>https://github.com/grpc/grpc/blob/master/LICENSE</licenseUrl>
     <projectUrl>https://github.com/grpc/grpc</projectUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <releaseNotes>Release 0.5.0 of gRPC C#</releaseNotes>
+    <releaseNotes>Release 0.5.1 of gRPC C#</releaseNotes>
     <copyright>Copyright 2015, Google Inc.</copyright>
     <tags>gRPC RPC Protocol HTTP/2</tags>
     <dependencies>
-      <dependency id="Grpc.Core" version="0.5.0" />
+      <dependency id="Grpc.Core" version="0.5.1" />
     </dependencies>
   </metadata>
   <files/>
diff --git a/vsprojects/nuget_package/grpc.native.csharp_ext.nuspec b/vsprojects/nuget_package/grpc.native.csharp_ext.nuspec
index 2527f4c415c4ae66e4064e6a326e9ed9a6bb927c..211d747e2d61549fae6df2fe40965f74f6614bf6 100644
--- a/vsprojects/nuget_package/grpc.native.csharp_ext.nuspec
+++ b/vsprojects/nuget_package/grpc.native.csharp_ext.nuspec
@@ -2,14 +2,14 @@
 <package>
   <metadata>
     <id>grpc.native.csharp_ext</id>
-    <version>0.9.0.0</version>
+    <version>0.9.1</version>
     <authors>Google Inc.</authors>
     <owners>grpc-packages</owners>
     <licenseUrl>https://github.com/grpc/grpc/blob/master/LICENSE</licenseUrl>
     <projectUrl>http://github.com/grpc/grpc</projectUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <description>Native extension needed by gRPC C# library. This is not the package you are looking for, it is only meant to be used as a dependency.</description>
-    <releaseNotes>Release of gRPC C core 0.9.0 libraries.</releaseNotes>
+    <releaseNotes>Release of gRPC C core 0.9.1 libraries.</releaseNotes>
     <copyright>Copyright 2015</copyright>
     <title>gRPC C# Native Extension</title>
     <summary>Native library required by gRPC C#</summary>
@@ -27,4 +27,4 @@
     <file src="output\v100\Win32\Debug\grpc_csharp_ext.dll" target="/build/native/bin/v100\Win32\Debug\grpc_csharp_ext.dll" />
     <file src="output\v120\Win32\Debug\grpc_csharp_ext.dll" target="/build/native/bin/v120\Win32\Debug\grpc_csharp_ext.dll" />
   </files>
-</package>
\ No newline at end of file
+</package>