diff --git a/sources/server/02-business/01-referentiel/Formation.ReferentielTests/Formation.ReferentielTests.csproj b/sources/server/02-business/01-referentiel/Formation.ReferentielTests/Formation.ReferentielTests.csproj
index 9e510fd..9cae64c 100644
--- a/sources/server/02-business/01-referentiel/Formation.ReferentielTests/Formation.ReferentielTests.csproj
+++ b/sources/server/02-business/01-referentiel/Formation.ReferentielTests/Formation.ReferentielTests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
   </ItemGroup>
diff --git a/sources/server/02-business/02-trainers/Formation.TrainersTests/Formation.TrainersTests.csproj b/sources/server/02-business/02-trainers/Formation.TrainersTests/Formation.TrainersTests.csproj
index 143feeb..c704efb 100644
--- a/sources/server/02-business/02-trainers/Formation.TrainersTests/Formation.TrainersTests.csproj
+++ b/sources/server/02-business/02-trainers/Formation.TrainersTests/Formation.TrainersTests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
   </ItemGroup>
diff --git a/sources/server/02-business/03-sessions/Formation.SessionsTests/Formation.SessionsTests.csproj b/sources/server/02-business/03-sessions/Formation.SessionsTests/Formation.SessionsTests.csproj
index 4e8f8ac..18d80c9 100644
--- a/sources/server/02-business/03-sessions/Formation.SessionsTests/Formation.SessionsTests.csproj
+++ b/sources/server/02-business/03-sessions/Formation.SessionsTests/Formation.SessionsTests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
   </ItemGroup>
diff --git a/sources/server/02-business/04-requests/Formation.RequestsTests/Formation.RequestsTests.csproj b/sources/server/02-business/04-requests/Formation.RequestsTests/Formation.RequestsTests.csproj
index 01e3344..13cce11 100644
--- a/sources/server/02-business/04-requests/Formation.RequestsTests/Formation.RequestsTests.csproj
+++ b/sources/server/02-business/04-requests/Formation.RequestsTests/Formation.RequestsTests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
   </ItemGroup>
diff --git a/sources/server/02-business/05-publications/Formation.PublicationsTests/Formation.PublicationsTests.csproj b/sources/server/02-business/05-publications/Formation.PublicationsTests/Formation.PublicationsTests.csproj
index f1f5fa0..5af4144 100644
--- a/sources/server/02-business/05-publications/Formation.PublicationsTests/Formation.PublicationsTests.csproj
+++ b/sources/server/02-business/05-publications/Formation.PublicationsTests/Formation.PublicationsTests.csproj
@@ -7,7 +7,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1" />
   </ItemGroup>