diff --git a/lessons/day_06/netcore/src/GraphQLSample/GraphQLNetCore.csproj b/lessons/day_06/netcore/src/GraphQLSample/GraphQLNetCore.csproj
index 62b70dd..23df1a0 100644
--- a/lessons/day_06/netcore/src/GraphQLSample/GraphQLNetCore.csproj
+++ b/lessons/day_06/netcore/src/GraphQLSample/GraphQLNetCore.csproj
@@ -14,8 +14,8 @@
   <ItemGroup>
     <PackageReference Include="GraphQL" Version="2.4.0" />
     <PackageReference Include="GraphQL.Server.Ui.Playground" Version="3.5.0-alpha0046" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="3.1.3" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="3.1.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="5.0.0-preview.7.20365.15" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="5.0.0-preview.7.20365.15" />
   </ItemGroup>
 
 </Project>