diff --git a/src/admin/Bootstrap.Admin/Bootstrap.Admin.csproj b/src/admin/Bootstrap.Admin/Bootstrap.Admin.csproj
index a00ac7b0..795b8a09 100644
--- a/src/admin/Bootstrap.Admin/Bootstrap.Admin.csproj
+++ b/src/admin/Bootstrap.Admin/Bootstrap.Admin.csproj
@@ -4,7 +4,7 @@
     <TargetFramework>netcoreapp3.0</TargetFramework>
     <AddRazorSupportForMvc>true</AddRazorSupportForMvc>
   </PropertyGroup>
-  
+
   <PropertyGroup>
     <DocumentationFile>$(MSBuildProjectName).xml</DocumentationFile>
     <DockerDefaultTargetOS>Windows</DockerDefaultTargetOS>
@@ -13,16 +13,12 @@
   <ItemGroup>
     <PackageReference Include="Bootstrap.Security.DataAccess" Version="2.2.21" />
     <PackageReference Include="Bootstrap.Security.Mvc" Version="3.0.1-beta5" />
-    <PackageReference Include="Longbow" Version="3.0.0-beta1" />
     <PackageReference Include="Longbow.Configuration" Version="2.2.7" />
     <PackageReference Include="Longbow.Logging" Version="3.0.0" />
     <PackageReference Include="Longbow.Tasks" Version="2.2.24" />
     <PackageReference Include="Longbow.Web" Version="3.0.0-beta1" />
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="3.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.Versioning" Version="4.0.0-preview8.19405.7" />
-    <PackageReference Include="Microsoft.AspNetCore.SignalR.Protocols.NewtonsoftJson" Version="3.0.0" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="3.0.0" />
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
     <PackageReference Include="Sentry.AspNetCore" Version="2.0.0-beta4" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="5.0.0-rc4" />
     <PackageReference Include="System.Data.SqlClient" Version="4.7.0" />
diff --git a/src/admin/Bootstrap.Admin/Startup.cs b/src/admin/Bootstrap.Admin/Startup.cs
index 05ed94a3..b424fcd9 100644
--- a/src/admin/Bootstrap.Admin/Startup.cs
+++ b/src/admin/Bootstrap.Admin/Startup.cs
@@ -11,8 +11,6 @@ using Microsoft.AspNetCore.Mvc.Versioning;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Serialization;
 using System;
 using System.Text.Encodings.Web;
 using System.Text.Unicode;
@@ -59,11 +57,7 @@ namespace Bootstrap.Admin
             services.AddDbAdapter();
             services.AddIPLocator(DictHelper.ConfigIPLocator);
             services.AddOnlineUsers();
-            services.AddSignalR().AddNewtonsoftJsonProtocol(op =>
-            {
-                op.PayloadSerializerSettings.ContractResolver = new DefaultContractResolver();
-                op.PayloadSerializerSettings.DateFormatString = "yyyy-MM-dd HH:mm:ss";
-            });
+            services.AddSignalR().AddJsonProtocol(op => op.PayloadSerializerOptions.Configure());
             services.AddSignalRExceptionFilterHandler<SignalRHub>(async (client, ex) => await client.SendMessageBody(ex).ConfigureAwait(false));
             services.AddResponseCompression();
             services.AddBootstrapAdminAuthentication().AddGitee(OAuthHelper.Configure).AddGitHub(OAuthHelper.Configure);
@@ -77,12 +71,7 @@ namespace Bootstrap.Admin
             {
                 options.Filters.Add<ExceptionFilter>();
                 options.Filters.Add<SignalRExceptionFilter<SignalRHub>>();
-            }).AddNewtonsoftJson(op =>
-            {
-                op.SerializerSettings.ContractResolver = new DefaultContractResolver();
-                op.SerializerSettings.DateFormatString = "yyyy-MM-dd HH:mm:ss";
-                JsonConvert.DefaultSettings = () => op.SerializerSettings;
-            });
+            }).AddJsonOptions(op => op.JsonSerializerOptions.Configure());
             services.AddApiVersioning(option =>
             {
                 option.DefaultApiVersion = new ApiVersion(1, 0);
diff --git a/src/admin/Bootstrap.DataAccess/Bootstrap.DataAccess.csproj b/src/admin/Bootstrap.DataAccess/Bootstrap.DataAccess.csproj
index 44e0cb6a..7702c68a 100644
--- a/src/admin/Bootstrap.DataAccess/Bootstrap.DataAccess.csproj
+++ b/src/admin/Bootstrap.DataAccess/Bootstrap.DataAccess.csproj
@@ -10,7 +10,7 @@
 
   <ItemGroup>
     <PackageReference Include="Bootstrap.Security.DataAccess" Version="2.2.21" />
-    <PackageReference Include="Longbow" Version="3.0.0-beta1" />
+    <PackageReference Include="Longbow" Version="3.0.0-beta2" />
     <PackageReference Include="Longbow.Configuration" Version="2.2.7" />
     <PackageReference Include="Longbow.Data" Version="2.3.8" />
     <PackageReference Include="Longbow.GiteeAuth" Version="2.2.0" />
diff --git a/src/admin/Bootstrap.DataAccess/Helper/SMSHelper.cs b/src/admin/Bootstrap.DataAccess/Helper/SMSHelper.cs
index 3805513e..e76fb953 100644
--- a/src/admin/Bootstrap.DataAccess/Helper/SMSHelper.cs
+++ b/src/admin/Bootstrap.DataAccess/Helper/SMSHelper.cs
@@ -1,5 +1,4 @@
 using Microsoft.AspNetCore.WebUtilities;
-using Newtonsoft.Json;
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
@@ -8,6 +7,12 @@ using System.Net.Http;
 using System.Security.Cryptography;
 using System.Text;
 using System.Threading;
+#if NETCOREAPP3_0
+using System.Text.Json;
+#else
+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
+#endif
 
 namespace Bootstrap.DataAccess
 {
@@ -38,7 +43,14 @@ namespace Bootstrap.DataAccess
             var url = QueryHelpers.AddQueryString("http://open.bluegoon.com/api/sms/sendcode", requestParameters);
             var req = await client.GetAsync(url);
             var content = await req.Content.ReadAsStringAsync();
-            var result = JsonConvert.DeserializeObject<SMSResult>(content);
+#if NETCOREAPP3_0
+            var result = JsonSerializer.Deserialize<SMSResult>(content, new JsonSerializerOptions()
+            {
+                PropertyNameCaseInsensitive = true
+            });
+#else
+            var result = JsonConvert.DeserializeObject<SMSResult>(content, new JsonSerializerSettings() { ContractResolver = new DefaultContractResolver() });
+#endif
             var ret = false;
             if (result.Code == "1")
             {
diff --git a/src/client/Bootstrap.Client/Startup.cs b/src/client/Bootstrap.Client/Startup.cs
index b5180699..94d41a00 100644
--- a/src/client/Bootstrap.Client/Startup.cs
+++ b/src/client/Bootstrap.Client/Startup.cs
@@ -9,8 +9,6 @@ using Microsoft.AspNetCore.HttpOverrides;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
-using Newtonsoft.Json;
-using Newtonsoft.Json.Serialization;
 using System;
 
 namespace Bootstrap.Client
@@ -62,12 +60,7 @@ namespace Bootstrap.Client
             {
                 options.Filters.Add<ExceptionFilter>();
                 options.Filters.Add<SignalRExceptionFilter<SignalRHub>>();
-            }).AddNewtonsoftJson(op =>
-            {
-                op.SerializerSettings.ContractResolver = new DefaultContractResolver();
-                op.SerializerSettings.DateFormatString = "yyyy-MM-dd HH:mm:ss";
-                JsonConvert.DefaultSettings = () => op.SerializerSettings;
-            });
+            }).AddJsonOptions(op => op.JsonSerializerOptions.Configure());
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.