diff --git a/iugu.net.IntegratedTests/packages.config b/iugu.net.IntegratedTests/packages.config
index 557623f..e106beb 100644
--- a/iugu.net.IntegratedTests/packages.config
+++ b/iugu.net.IntegratedTests/packages.config
@@ -3,7 +3,7 @@
   <package id="AutoFixture" version="3.50.2" targetFramework="net45" />
   <package id="coveralls.io" version="1.3.4" targetFramework="net45" />
   <package id="FluentAssertions" version="4.19.0" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="11.0.1" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.1" targetFramework="net45" />
   <package id="NUnit" version="3.6.0" targetFramework="net45" />
   <package id="NUnit.Console" version="3.6.0" targetFramework="net45" />
   <package id="NUnit.ConsoleRunner" version="3.6.0" targetFramework="net45" />
diff --git a/iugu.net/iugu.net.csproj b/iugu.net/iugu.net.csproj
index d7c8b43..1f51218 100644
--- a/iugu.net/iugu.net.csproj
+++ b/iugu.net/iugu.net.csproj
@@ -30,7 +30,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Newtonsoft.Json" Version="11.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
 </Project>
\ No newline at end of file