diff --git a/build/BuildScript.csproj b/build/BuildScript.csproj
index bb5c75c..b6f64b9 100644
--- a/build/BuildScript.csproj
+++ b/build/BuildScript.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/samples/Sample.AmazonSQS.InMemory/Sample.AmazonSQS.InMemory.csproj b/samples/Sample.AmazonSQS.InMemory/Sample.AmazonSQS.InMemory.csproj
index c8ed0b3..7acd5c7 100644
--- a/samples/Sample.AmazonSQS.InMemory/Sample.AmazonSQS.InMemory.csproj
+++ b/samples/Sample.AmazonSQS.InMemory/Sample.AmazonSQS.InMemory.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
    
   <ItemGroup>
diff --git a/samples/Sample.ConsoleApp/Sample.ConsoleApp.csproj b/samples/Sample.ConsoleApp/Sample.ConsoleApp.csproj
index fa5e69e..442d727 100644
--- a/samples/Sample.ConsoleApp/Sample.ConsoleApp.csproj
+++ b/samples/Sample.ConsoleApp/Sample.ConsoleApp.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
     <OutputType>Exe</OutputType>
   </PropertyGroup>
 
diff --git a/samples/Sample.Kafka.PostgreSql/Sample.Kafka.PostgreSql.csproj b/samples/Sample.Kafka.PostgreSql/Sample.Kafka.PostgreSql.csproj
index 90d24a4..3348e3b 100644
--- a/samples/Sample.Kafka.PostgreSql/Sample.Kafka.PostgreSql.csproj
+++ b/samples/Sample.Kafka.PostgreSql/Sample.Kafka.PostgreSql.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
     <WarningsAsErrors>NU1701</WarningsAsErrors>
     <NoWarn>NU1701</NoWarn>
   </PropertyGroup>
diff --git a/samples/Sample.RabbitMQ.MongoDB/Sample.RabbitMQ.MongoDB.csproj b/samples/Sample.RabbitMQ.MongoDB/Sample.RabbitMQ.MongoDB.csproj
index 831dc9c..3b31902 100644
--- a/samples/Sample.RabbitMQ.MongoDB/Sample.RabbitMQ.MongoDB.csproj
+++ b/samples/Sample.RabbitMQ.MongoDB/Sample.RabbitMQ.MongoDB.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/samples/Sample.RabbitMQ.MySql/AppDbContext.cs b/samples/Sample.RabbitMQ.MySql/AppDbContext.cs
index 526424d..cb24887 100644
--- a/samples/Sample.RabbitMQ.MySql/AppDbContext.cs
+++ b/samples/Sample.RabbitMQ.MySql/AppDbContext.cs
@@ -32,7 +32,7 @@ namespace Sample.RabbitMQ.MySql
 
         protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
         {
-            optionsBuilder.UseMySql(ConnectionString);
+            optionsBuilder.UseMySQL(ConnectionString);
         }
     }
 }
diff --git a/samples/Sample.RabbitMQ.MySql/Migrations/20180821021736_init.cs b/samples/Sample.RabbitMQ.MySql/Migrations/20180821021736_init.cs
index 762ddbf..646bf08 100644
--- a/samples/Sample.RabbitMQ.MySql/Migrations/20180821021736_init.cs
+++ b/samples/Sample.RabbitMQ.MySql/Migrations/20180821021736_init.cs
@@ -1,5 +1,5 @@
-using Microsoft.EntityFrameworkCore.Metadata;
-using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Migrations;
+using MySql.Data.EntityFrameworkCore.Metadata;
 
 namespace Sample.RabbitMQ.MySql.Migrations
 {
@@ -12,7 +12,7 @@ namespace Sample.RabbitMQ.MySql.Migrations
                 columns: table => new
                 {
                     Id = table.Column<int>(nullable: false)
-                        .Annotation("MySql:ValueGenerationStrategy", MySqlValueGenerationStrategy.IdentityColumn),
+                        .Annotation("MySql:ValueGenerationStrategy", MySQLValueGenerationStrategy.IdentityColumn),
                     Name = table.Column<string>(nullable: true)
                 },
                 constraints: table =>
diff --git a/samples/Sample.RabbitMQ.MySql/Sample.RabbitMQ.MySql.csproj b/samples/Sample.RabbitMQ.MySql/Sample.RabbitMQ.MySql.csproj
index 099f9d6..0dafb6f 100644
--- a/samples/Sample.RabbitMQ.MySql/Sample.RabbitMQ.MySql.csproj
+++ b/samples/Sample.RabbitMQ.MySql/Sample.RabbitMQ.MySql.csproj
@@ -1,12 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Dapper" Version="2.0.35" />
-    <PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="3.1.1" />
+    <PackageReference Include="MySql.Data.EntityFrameworkCore" Version="8.0.22" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\DotNetCore.CAP.Dashboard\DotNetCore.CAP.Dashboard.csproj" />
diff --git a/samples/Sample.RabbitMQ.SqlServer/Sample.RabbitMQ.SqlServer.csproj b/samples/Sample.RabbitMQ.SqlServer/Sample.RabbitMQ.SqlServer.csproj
index e22c30f..ad0d9ec 100644
--- a/samples/Sample.RabbitMQ.SqlServer/Sample.RabbitMQ.SqlServer.csproj
+++ b/samples/Sample.RabbitMQ.SqlServer/Sample.RabbitMQ.SqlServer.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/DotNetCore.CAP.AmazonSQS/DotNetCore.CAP.AmazonSQS.csproj b/src/DotNetCore.CAP.AmazonSQS/DotNetCore.CAP.AmazonSQS.csproj
index 45db3a3..e594310 100644
--- a/src/DotNetCore.CAP.AmazonSQS/DotNetCore.CAP.AmazonSQS.csproj
+++ b/src/DotNetCore.CAP.AmazonSQS/DotNetCore.CAP.AmazonSQS.csproj
@@ -1,13 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">
   
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AssemblyName>DotNetCore.CAP.AmazonSQS</AssemblyName>
     <PackageTags>$(PackageTags);AmazonSQS;SQS</PackageTags>
   </PropertyGroup>
   
   <PropertyGroup>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\DotNetCore.CAP.AmazonSQS.xml</DocumentationFile>
+    <DocumentationFile>bin\$(Configuration)\netstandard2.1\DotNetCore.CAP.AmazonSQS.xml</DocumentationFile>
     <NoWarn>1701;1702;1705;CS1591</NoWarn>
   </PropertyGroup>
 
diff --git a/src/DotNetCore.CAP.AzureServiceBus/DotNetCore.CAP.AzureServiceBus.csproj b/src/DotNetCore.CAP.AzureServiceBus/DotNetCore.CAP.AzureServiceBus.csproj
index 97d28ce..66bebbf 100644
--- a/src/DotNetCore.CAP.AzureServiceBus/DotNetCore.CAP.AzureServiceBus.csproj
+++ b/src/DotNetCore.CAP.AzureServiceBus/DotNetCore.CAP.AzureServiceBus.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AssemblyName>DotNetCore.CAP.AzureServiceBus</AssemblyName>
     <PackageTags>$(PackageTags);AzureServiceBus</PackageTags>
   </PropertyGroup>
@@ -9,7 +9,7 @@
   <PropertyGroup>
     <WarningsAsErrors>NU1605;NU1701</WarningsAsErrors>
     <NoWarn>NU1701;CS1591</NoWarn>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\DotNetCore.CAP.AzureServiceBus.xml</DocumentationFile>
+    <DocumentationFile>bin\$(Configuration)\netstandard2.1\DotNetCore.CAP.AzureServiceBus.xml</DocumentationFile>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/DotNetCore.CAP.Dashboard/DotNetCore.CAP.Dashboard.csproj b/src/DotNetCore.CAP.Dashboard/DotNetCore.CAP.Dashboard.csproj
index 29ef3fb..0f0b538 100644
--- a/src/DotNetCore.CAP.Dashboard/DotNetCore.CAP.Dashboard.csproj
+++ b/src/DotNetCore.CAP.Dashboard/DotNetCore.CAP.Dashboard.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
     <NoWarn>1591</NoWarn>
   </PropertyGroup>
 
diff --git a/src/DotNetCore.CAP.InMemoryStorage/DotNetCore.CAP.InMemoryStorage.csproj b/src/DotNetCore.CAP.InMemoryStorage/DotNetCore.CAP.InMemoryStorage.csproj
index 34925ce..127176a 100644
--- a/src/DotNetCore.CAP.InMemoryStorage/DotNetCore.CAP.InMemoryStorage.csproj
+++ b/src/DotNetCore.CAP.InMemoryStorage/DotNetCore.CAP.InMemoryStorage.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AssemblyName>DotNetCore.CAP.InMemoryStorage</AssemblyName>
     <PackageTags>$(PackageTags);InMemory</PackageTags>
   </PropertyGroup>
diff --git a/src/DotNetCore.CAP.Kafka/DotNetCore.CAP.Kafka.csproj b/src/DotNetCore.CAP.Kafka/DotNetCore.CAP.Kafka.csproj
index 1f2f8ff..1f82ccf 100644
--- a/src/DotNetCore.CAP.Kafka/DotNetCore.CAP.Kafka.csproj
+++ b/src/DotNetCore.CAP.Kafka/DotNetCore.CAP.Kafka.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AssemblyName>DotNetCore.CAP.Kafka</AssemblyName>
     <PackageTags>$(PackageTags);Kafka</PackageTags>
   </PropertyGroup>
@@ -9,7 +9,7 @@
   <PropertyGroup>
     <WarningsAsErrors>NU1605;NU1701</WarningsAsErrors>
     <NoWarn>NU1701;CS1591</NoWarn>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\DotNetCore.CAP.Kafka.xml</DocumentationFile>
+    <DocumentationFile>bin\$(Configuration)\netstandard2.1\DotNetCore.CAP.Kafka.xml</DocumentationFile>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/src/DotNetCore.CAP.MongoDB/DotNetCore.CAP.MongoDB.csproj b/src/DotNetCore.CAP.MongoDB/DotNetCore.CAP.MongoDB.csproj
index 6140851..1a2e3f3 100644
--- a/src/DotNetCore.CAP.MongoDB/DotNetCore.CAP.MongoDB.csproj
+++ b/src/DotNetCore.CAP.MongoDB/DotNetCore.CAP.MongoDB.csproj
@@ -1,13 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AssemblyName>DotNetCore.CAP.MongoDB</AssemblyName>
     <PackageTags>$(PackageTags);MongoDB</PackageTags>
   </PropertyGroup>
   
   <PropertyGroup>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\DotNetCore.CAP.MongoDB.xml</DocumentationFile>
+    <DocumentationFile>bin\$(Configuration)\netstandard2.1\DotNetCore.CAP.MongoDB.xml</DocumentationFile>
     <NoWarn>1701;1702;1705;CS1591</NoWarn>
   </PropertyGroup>
 
diff --git a/src/DotNetCore.CAP.MySql/DotNetCore.CAP.MySql.csproj b/src/DotNetCore.CAP.MySql/DotNetCore.CAP.MySql.csproj
index b5373de..07621d0 100644
--- a/src/DotNetCore.CAP.MySql/DotNetCore.CAP.MySql.csproj
+++ b/src/DotNetCore.CAP.MySql/DotNetCore.CAP.MySql.csproj
@@ -1,13 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netstandard2.1</TargetFrameworks>
+    <TargetFrameworks>netstandard2.1</TargetFrameworks>
     <AssemblyName>DotNetCore.CAP.MySql</AssemblyName>
     <PackageTags>$(PackageTags);MySQL</PackageTags>
   </PropertyGroup>
 
   <PropertyGroup>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\DotNetCore.CAP.MySql.xml</DocumentationFile>
+    <DocumentationFile>bin\$(Configuration)\netstandard2.1\DotNetCore.CAP.MySql.xml</DocumentationFile>
     <NoWarn>1701;1702;1705;CS1591</NoWarn>
   </PropertyGroup>
 
diff --git a/src/DotNetCore.CAP.PostgreSql/DotNetCore.CAP.PostgreSql.csproj b/src/DotNetCore.CAP.PostgreSql/DotNetCore.CAP.PostgreSql.csproj
index 912a9f3..608a8ce 100644
--- a/src/DotNetCore.CAP.PostgreSql/DotNetCore.CAP.PostgreSql.csproj
+++ b/src/DotNetCore.CAP.PostgreSql/DotNetCore.CAP.PostgreSql.csproj
@@ -1,13 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AssemblyName>DotNetCore.CAP.PostgreSql</AssemblyName>
     <PackageTags>$(PackageTags);PostgreSQL</PackageTags>
   </PropertyGroup>
   
   <PropertyGroup>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\DotNetCore.CAP.PostgreSql.xml</DocumentationFile>
+    <DocumentationFile>bin\$(Configuration)\netstandard2.1\DotNetCore.CAP.PostgreSql.xml</DocumentationFile>
     <NoWarn>1701;1702;1705;CS1591</NoWarn>
   </PropertyGroup>
   
diff --git a/src/DotNetCore.CAP.RabbitMQ/DotNetCore.CAP.RabbitMQ.csproj b/src/DotNetCore.CAP.RabbitMQ/DotNetCore.CAP.RabbitMQ.csproj
index 1fc96d1..4705aa1 100644
--- a/src/DotNetCore.CAP.RabbitMQ/DotNetCore.CAP.RabbitMQ.csproj
+++ b/src/DotNetCore.CAP.RabbitMQ/DotNetCore.CAP.RabbitMQ.csproj
@@ -1,13 +1,13 @@
 <Project Sdk="Microsoft.NET.Sdk">
   
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AssemblyName>DotNetCore.CAP.RabbitMQ</AssemblyName>
     <PackageTags>$(PackageTags);RabbitMQ</PackageTags>
   </PropertyGroup>
   
   <PropertyGroup>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\DotNetCore.CAP.RabbitMQ.xml</DocumentationFile>
+    <DocumentationFile>bin\$(Configuration)\netstandard2.1\DotNetCore.CAP.RabbitMQ.xml</DocumentationFile>
     <NoWarn>1701;1702;1705;CS1591</NoWarn>
   </PropertyGroup>
 
diff --git a/src/DotNetCore.CAP.SqlServer/DotNetCore.CAP.SqlServer.csproj b/src/DotNetCore.CAP.SqlServer/DotNetCore.CAP.SqlServer.csproj
index 3307a7d..73a280f 100644
--- a/src/DotNetCore.CAP.SqlServer/DotNetCore.CAP.SqlServer.csproj
+++ b/src/DotNetCore.CAP.SqlServer/DotNetCore.CAP.SqlServer.csproj
@@ -1,14 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
     <AssemblyName>DotNetCore.CAP.SqlServer</AssemblyName>
     <PackageTags>$(PackageTags);SQL Server</PackageTags>
 
   </PropertyGroup>
 
   <PropertyGroup>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\DotNetCore.CAP.SqlServer.xml</DocumentationFile>
+    <DocumentationFile>bin\$(Configuration)\netstandard2.1\DotNetCore.CAP.SqlServer.xml</DocumentationFile>
     <NoWarn>1701;1702;1705;CS1591</NoWarn>
   </PropertyGroup>
 
diff --git a/src/DotNetCore.CAP/DotNetCore.CAP.csproj b/src/DotNetCore.CAP/DotNetCore.CAP.csproj
index fe2c46c..a7bebc2 100644
--- a/src/DotNetCore.CAP/DotNetCore.CAP.csproj
+++ b/src/DotNetCore.CAP/DotNetCore.CAP.csproj
@@ -1,11 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
   
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFramework>netstandard2.1</TargetFramework>
   </PropertyGroup>
   
   <PropertyGroup>
-    <DocumentationFile>bin\$(Configuration)\netstandard2.0\DotNetCore.CAP.xml</DocumentationFile>
+    <DocumentationFile>bin\$(Configuration)\netstandard2.1\DotNetCore.CAP.xml</DocumentationFile>
     <NoWarn>1701;1702;1705;CS1591</NoWarn>
   </PropertyGroup>
   
diff --git a/test/DotNetCore.CAP.MySql.Test/DotNetCore.CAP.MySql.Test.csproj b/test/DotNetCore.CAP.MySql.Test/DotNetCore.CAP.MySql.Test.csproj
index dd0a52c..5f147cc 100644
--- a/test/DotNetCore.CAP.MySql.Test/DotNetCore.CAP.MySql.Test.csproj
+++ b/test/DotNetCore.CAP.MySql.Test/DotNetCore.CAP.MySql.Test.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
diff --git a/test/DotNetCore.CAP.Test/DotNetCore.CAP.Test.csproj b/test/DotNetCore.CAP.Test/DotNetCore.CAP.Test.csproj
index ae50a1f..e196a9d 100644
--- a/test/DotNetCore.CAP.Test/DotNetCore.CAP.Test.csproj
+++ b/test/DotNetCore.CAP.Test/DotNetCore.CAP.Test.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
     <IsPackable>false</IsPackable>
   </PropertyGroup>