diff --git a/by-language/csharp-efcore/demo.csproj b/by-language/csharp-efcore/demo.csproj
index 0f201ba3..2d0d0f13 100644
--- a/by-language/csharp-efcore/demo.csproj
+++ b/by-language/csharp-efcore/demo.csproj
@@ -11,7 +11,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.1" />
-    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="9.0.4" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="10.0.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5" />
     <PackageReference Include="coverlet.collector" Version="6.0.4" />