diff --git a/Elight.Utility/Elight.Utility.csproj b/Elight.Utility/Elight.Utility.csproj
index 772e6af..12a7efd 100644
--- a/Elight.Utility/Elight.Utility.csproj
+++ b/Elight.Utility/Elight.Utility.csproj
@@ -13,6 +13,7 @@
     <PackageReference Include="Microsoft.Extensions.Identity.Core" Version="7.0.5" />
     <PackageReference Include="Microsoft.Extensions.Identity.Stores" Version="7.0.5" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.2" />
+    <PackageReference Include="NPOI" Version="2.6.1" />
     <PackageReference Include="Swashbuckle.AspNetCore.SwaggerGen" Version="6.2.3" />
 	<PackageReference Include="System.Drawing.Common" Version="6.0.0" />
   </ItemGroup>