diff --git a/Kooboo.Json.Test/Kooboo.Json.Test.csproj b/Kooboo.Json.Test/Kooboo.Json.Test.csproj
index 4425284..16e463f 100644
--- a/Kooboo.Json.Test/Kooboo.Json.Test.csproj
+++ b/Kooboo.Json.Test/Kooboo.Json.Test.csproj
@@ -20,7 +20,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
     <PackageReference Include="MSTest.TestAdapter" Version="1.3.2" />
     <PackageReference Include="MSTest.TestFramework" Version="1.3.2" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     <PackageReference Include="RichardSzalay.MockHttp" Version="5.0.0" />
     <PackageReference Include="Utf8Json" Version="1.3.7" />
   </ItemGroup>
diff --git a/Kooboo.Json.Test/packages.config b/Kooboo.Json.Test/packages.config
index dcf2dbf..a639884 100644
--- a/Kooboo.Json.Test/packages.config
+++ b/Kooboo.Json.Test/packages.config
@@ -3,7 +3,7 @@
   <package id="Jil" version="2.17.0" targetFramework="net45" />
   <package id="MSTest.TestAdapter" version="1.3.2" targetFramework="net45" />
   <package id="MSTest.TestFramework" version="1.4.0" targetFramework="net45" />
-  <package id="Newtonsoft.Json" version="12.0.1" targetFramework="net45" />
+  <package id="Newtonsoft.Json" version="13.0.2" targetFramework="net45" />
   <package id="RichardSzalay.MockHttp" version="5.0.0" targetFramework="net45" />
   <package id="Sigil" version="4.7.0" targetFramework="net45" />
   <package id="System.Reflection.Emit" version="4.3.0" targetFramework="net45" />