diff --git a/src/netstandard/Newtonsoft.Msgpack/Newtonsoft.Msgpack.csproj b/src/netstandard/Newtonsoft.Msgpack/Newtonsoft.Msgpack.csproj
index 091a64a..10f7f12 100644
--- a/src/netstandard/Newtonsoft.Msgpack/Newtonsoft.Msgpack.csproj
+++ b/src/netstandard/Newtonsoft.Msgpack/Newtonsoft.Msgpack.csproj
@@ -14,10 +14,10 @@
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'net40' or '$(TargetFramework)' == 'net45' or '$(TargetFramework)' == 'net461' ">
-    <PackageReference Include="Newtonsoft.Json" Version="6.0.5" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
   <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.3' or '$(TargetFramework)' == 'netstandard2.0'">
-    <PackageReference Include="Newtonsoft.Json" Version="9.0.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
   </ItemGroup>
 
 </Project>