diff --git a/src/AspNetCore.IdentityServer4.Service/AspNetCore.IdentityServer4.Service.csproj b/src/AspNetCore.IdentityServer4.Service/AspNetCore.IdentityServer4.Service.csproj
index 59f1c2b..f7675cd 100644
--- a/src/AspNetCore.IdentityServer4.Service/AspNetCore.IdentityServer4.Service.csproj
+++ b/src/AspNetCore.IdentityServer4.Service/AspNetCore.IdentityServer4.Service.csproj
@@ -7,7 +7,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="2.2.0" />
     <PackageReference Include="Microsoft.Extensions.Options" Version="2.2.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
     <PackageReference Include="Novell.Directory.Ldap.NETStandard" Version="2.3.8" />
     <PackageReference Include="StackExchange.Redis" Version="2.0.601" />
     <PackageReference Include="XC.RSAUtil" Version="1.3.5" />