diff --git a/samples/Proteos.CrmSampleApi/Proteos.CrmSampleApi.csproj b/samples/Proteos.CrmSampleApi/Proteos.CrmSampleApi.csproj
index 2f8421f..e85540f 100644
--- a/samples/Proteos.CrmSampleApi/Proteos.CrmSampleApi.csproj
+++ b/samples/Proteos.CrmSampleApi/Proteos.CrmSampleApi.csproj
@@ -9,7 +9,7 @@
 
   <ItemGroup>
     <!-- SQLite database provider and Swagger UI. Nothing else is needed. -->
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.23" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.17" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="6.4.0" />
   </ItemGroup>
 
diff --git a/samples/Proteos.FeatureShowcase/Proteos.FeatureShowcase.csproj b/samples/Proteos.FeatureShowcase/Proteos.FeatureShowcase.csproj
index 4cd6477..e7960d3 100644
--- a/samples/Proteos.FeatureShowcase/Proteos.FeatureShowcase.csproj
+++ b/samples/Proteos.FeatureShowcase/Proteos.FeatureShowcase.csproj
@@ -12,7 +12,7 @@
   <ItemGroup>
     <!-- SQLite database provider. The concrete DI container (Microsoft.Extensions.DependencyInjection)
          comes transitively through EF Core, so it needs no separate reference. -->
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.23" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.17" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/samples/Proteos.SampleApi/Proteos.SampleApi.csproj b/samples/Proteos.SampleApi/Proteos.SampleApi.csproj
index a8002e8..f9847a8 100644
--- a/samples/Proteos.SampleApi/Proteos.SampleApi.csproj
+++ b/samples/Proteos.SampleApi/Proteos.SampleApi.csproj
@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <!-- The only database dependency: SQLite is a single file, no server to install. -->
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.23" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.17" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/tests/Proteos.Encryption.EntityFrameworkCore.Tests/Proteos.Encryption.EntityFrameworkCore.Tests.csproj b/tests/Proteos.Encryption.EntityFrameworkCore.Tests/Proteos.Encryption.EntityFrameworkCore.Tests.csproj
index c019e44..c6b59a8 100644
--- a/tests/Proteos.Encryption.EntityFrameworkCore.Tests/Proteos.Encryption.EntityFrameworkCore.Tests.csproj
+++ b/tests/Proteos.Encryption.EntityFrameworkCore.Tests/Proteos.Encryption.EntityFrameworkCore.Tests.csproj
@@ -9,7 +9,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.8.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="8.0.0" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.23" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.17" />
     <PackageReference Include="xunit" Version="2.6.6" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.6" />
   </ItemGroup>