diff --git a/samples/Katana.Sandbox.WebServer/Katana.Sandbox.WebServer.csproj b/samples/Katana.Sandbox.WebServer/Katana.Sandbox.WebServer.csproj
index 76b02d1f..44ff6a8d 100644
--- a/samples/Katana.Sandbox.WebServer/Katana.Sandbox.WebServer.csproj
+++ b/samples/Katana.Sandbox.WebServer/Katana.Sandbox.WebServer.csproj
@@ -58,8 +58,8 @@
       <HintPath>..\..\packages\Microsoft.IdentityModel.Tokens.5.3.0\lib\net45\Microsoft.IdentityModel.Tokens.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="Newtonsoft.Json, Version=10.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\Newtonsoft.Json.10.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
+    <Reference Include="Newtonsoft.Json, Version=13.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Newtonsoft.Json.13.0.1\lib\net45\Newtonsoft.Json.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="Owin, Version=1.0.0.0, Culture=neutral, PublicKeyToken=f0ebd12fd5e55cc5, processorArchitecture=MSIL">
diff --git a/samples/Katana.Sandbox.WebServer/packages.config b/samples/Katana.Sandbox.WebServer/packages.config
index d84632e5..0370635f 100644
--- a/samples/Katana.Sandbox.WebServer/packages.config
+++ b/samples/Katana.Sandbox.WebServer/packages.config
@@ -3,7 +3,7 @@
   <package id="Microsoft.IdentityModel.JsonWebTokens" version="5.3.0" targetFramework="net45" />
   <package id="Microsoft.IdentityModel.Logging" version="5.3.0" targetFramework="net45" />
   <package id="Microsoft.IdentityModel.Tokens" version="5.3.0" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="10.0.1" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="Owin" version="1.0" targetFramework="net45" />
   <package id="System.IdentityModel.Tokens.Jwt" version="5.3.0" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/tests/FunctionalTests/packages.config b/tests/FunctionalTests/packages.config
index ee227a91..4a4e619f 100644
--- a/tests/FunctionalTests/packages.config
+++ b/tests/FunctionalTests/packages.config
@@ -9,7 +9,7 @@
   <package id="Microsoft.IdentityModel.Tokens.Saml" version="5.3.0" targetFramework="net45" />
   <package id="Microsoft.IdentityModel.Xml" version="5.3.0" targetFramework="net45" />
   <package id="Microsoft.Web.Administration" version="7.0.0.0" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="10.0.1" targetFramework="net451" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net451" />
   <package id="NuGet.Core" version="2.1.0" targetFramework="net45" />
   <package id="Owin" version="1.0" targetFramework="net45" />
   <package id="System.IdentityModel.Tokens.Jwt" version="5.3.0" targetFramework="net45" />
diff --git a/tests/Microsoft.Owin.Security.Tests/packages.config b/tests/Microsoft.Owin.Security.Tests/packages.config
index e810e706..cc0922f6 100644
--- a/tests/Microsoft.Owin.Security.Tests/packages.config
+++ b/tests/Microsoft.Owin.Security.Tests/packages.config
@@ -5,7 +5,7 @@
   <package id="Microsoft.IdentityModel.Protocols" version="5.3.0" targetFramework="net45" />
   <package id="Microsoft.IdentityModel.Protocols.OpenIdConnect" version="5.3.0" targetFramework="net45" />
   <package id="Microsoft.IdentityModel.Tokens" version="5.3.0" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="10.0.1" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="Owin" version="1.0" targetFramework="net45" />
   <package id="Shouldly" version="1.1.1.1" targetFramework="net45" />
   <package id="System.IdentityModel.Tokens.Jwt" version="5.3.0" targetFramework="net45" />