diff --git a/Shippo/Shippo.csproj b/Shippo/Shippo.csproj
index c24a20c..62feaa2 100644
--- a/Shippo/Shippo.csproj
+++ b/Shippo/Shippo.csproj
@@ -30,7 +30,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'net45' ">
diff --git a/ShippoTesting/packages.config b/ShippoTesting/packages.config
index 0a783b6..fdf4a09 100644
--- a/ShippoTesting/packages.config
+++ b/ShippoTesting/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="10.0.1" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.2" targetFramework="net45" />
   <package id="NUnit" version="3.8.1" targetFramework="net45" />
 </packages>
\ No newline at end of file