diff --git a/Excel-exporting-in-server-side/TestSample/TestSample.csproj b/Excel-exporting-in-server-side/TestSample/TestSample.csproj
index dfd2944..281090f 100644
--- a/Excel-exporting-in-server-side/TestSample/TestSample.csproj
+++ b/Excel-exporting-in-server-side/TestSample/TestSample.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.3" />
+    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.9" />
     <PackageReference Include="Syncfusion.EJ2.AspNet.Core" Version="16.3.0.36" />
     <PackageReference Include="Syncfusion.XlsIO.Net.Core" Version="17.1.0.42" />
   </ItemGroup>