diff --git a/nuget-publish.bat b/nuget-publish.bat
index d406dd51..1e28d90f 100644
--- a/nuget-publish.bat
+++ b/nuget-publish.bat
@@ -1,8 +1,8 @@
 :start
 ::定义版本
-set EFCORE2=2.3.1.06
-set EFCORE3=3.3.1.06
-set EFCORE5=5.3.1.06
+set EFCORE2=2.3.1.07
+set EFCORE3=3.3.1.07
+set EFCORE5=5.3.1.07
 
 ::删除所有bin与obj下的文件
 @echo off
diff --git a/samples/Samples.AbpSharding/AbstractShardingAbpDbContext.cs b/samples/Samples.AbpSharding/AbstractShardingAbpDbContext.cs
index d71ef73f..5a1c4c0c 100644
--- a/samples/Samples.AbpSharding/AbstractShardingAbpDbContext.cs
+++ b/samples/Samples.AbpSharding/AbstractShardingAbpDbContext.cs
@@ -14,10 +14,11 @@ using Volo.Abp.EntityFrameworkCore;
 
 namespace Samples.AbpSharding
 {
-    public abstract class AbstractShardingAbpDbContext : AbpDbContext<AbstractShardingAbpDbContext>, IShardingDbContext, ISupportShardingTransaction, ISupportShardingReadWrite
+    public abstract class AbstractShardingAbpDbContext<TDbContext> : AbpDbContext<TDbContext>, IShardingDbContext, ISupportShardingTransaction, ISupportShardingReadWrite 
+                                where TDbContext:DbContext
     {
         private readonly IShardingDbContextExecutor _shardingDbContextExecutor;
-        protected AbstractShardingAbpDbContext(DbContextOptions<AbstractShardingAbpDbContext> options) : base(options)
+        protected AbstractShardingAbpDbContext(DbContextOptions<TDbContext> options) : base(options)
         {
 
             var wrapOptionsExtension = options.FindExtension<ShardingWrapOptionsExtension>();
@@ -60,7 +61,7 @@ namespace Samples.AbpSharding
         public DbContext GetDbContext(string dataSourceName, bool parallelQuery, IRouteTail routeTail)
         {
             var dbContext = _shardingDbContextExecutor.CreateDbContext(parallelQuery, dataSourceName, routeTail);
-            if (!parallelQuery&& dbContext is AbstractShardingAbpDbContext abstractShardingAbpDbContext)
+            if (!parallelQuery&& dbContext is AbstractShardingAbpDbContext<TDbContext> abstractShardingAbpDbContext)
             {
                 abstractShardingAbpDbContext.LazyServiceProvider = this.LazyServiceProvider;
             }