diff --git a/Fitbit.Portable/Fitbit.Portable.csproj b/Fitbit.Portable/Fitbit.Portable.csproj
index 4d1dc9b2..ac2ff7e3 100644
--- a/Fitbit.Portable/Fitbit.Portable.csproj
+++ b/Fitbit.Portable/Fitbit.Portable.csproj
@@ -12,7 +12,7 @@
   </ItemGroup>
   
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
 </Project>
diff --git a/SampleWebMVC.Portable/packages.config b/SampleWebMVC.Portable/packages.config
index 0e7cd054..40ec875c 100644
--- a/SampleWebMVC.Portable/packages.config
+++ b/SampleWebMVC.Portable/packages.config
@@ -14,5 +14,5 @@
   <package id="Microsoft.Net.Http" version="2.2.22" targetFramework="net45" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net45" />
   <package id="Modernizr" version="2.6.2" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="8.0.2" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
 </packages>
\ No newline at end of file