diff --git a/Rnwood.Smtp4dev/Rnwood.Smtp4dev.csproj b/Rnwood.Smtp4dev/Rnwood.Smtp4dev.csproj
index 1e42af762..da8ab8fba 100644
--- a/Rnwood.Smtp4dev/Rnwood.Smtp4dev.csproj
+++ b/Rnwood.Smtp4dev/Rnwood.Smtp4dev.csproj
@@ -33,7 +33,7 @@
 		  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 		  <PrivateAssets>all</PrivateAssets>
 		</PackageReference>
-		<PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="5.0.8" />
+		<PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="6.0.9" />
 		<PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="5.0.8" />
 		<PackageReference Include="MimeKit" Version="2.15.1" />
 		<PackageReference Include="Mono.Options" Version="6.12.0.148" />