diff --git a/Knots/Validators/Message/CreateMessageDtoValidator.cs b/Knots/Validators/Message/CreateMessageDtoValidator.cs
index 5f4863f..59f47a8 100644
--- a/Knots/Validators/Message/CreateMessageDtoValidator.cs
+++ b/Knots/Validators/Message/CreateMessageDtoValidator.cs
@@ -1,6 +1,23 @@
+using FastEndpoints;
+using FluentValidation;
+using Knots.DTO.Message;
+
 namespace Knots.Validators.Message;
 
-public class CreateMessageDtoValidator
+public class CreateMessageDtoValidator : Validator<CreateMessageDto>
 {
-    
+    public CreateMessageDtoValidator()
+    {
+        RuleFor(x => x.Contenu)
+            .NotEmpty()
+            .WithMessage("Le message ne peux pas être vide")
+            .MaximumLength(1000)
+            .WithMessage("Le message ne doit pas faire plus de 1000 caractères");
+
+
+        RuleFor(x => x.Date)
+            .NotEmpty()
+            .WithMessage("La date ne peut pas être vide");
+
+    }
 }
\ No newline at end of file
diff --git a/Knots/Validators/Role/CreateRoleDtoValidator.cs b/Knots/Validators/Role/CreateRoleDtoValidator.cs
index d4eb2dc..9430846 100644
--- a/Knots/Validators/Role/CreateRoleDtoValidator.cs
+++ b/Knots/Validators/Role/CreateRoleDtoValidator.cs
@@ -1,6 +1,17 @@
+using FastEndpoints;
+using FluentValidation;
+using Knots.DTO.Role;
+
 namespace Knots.Validators.Role;
 
-public class CreateRoleDtoValidator
+public class CreateRoleDtoValidator : Validator<CreateRoleDto>
 {
-    
+    public CreateRoleDtoValidator()
+    {
+        RuleFor(x => x.Libelle)
+            .NotEmpty()
+            .WithMessage("Libelle cannot be empty")
+            .MaximumLength(50)
+            .WithMessage("Libelle maximum length is 50");
+    }
 }
\ No newline at end of file
diff --git a/Knots/Validators/Role/DeleteRoleDtoValidator.cs b/Knots/Validators/Role/DeleteRoleDtoValidator.cs
index e7670d5..aa45976 100644
--- a/Knots/Validators/Role/DeleteRoleDtoValidator.cs
+++ b/Knots/Validators/Role/DeleteRoleDtoValidator.cs
@@ -1,6 +1,15 @@
+using FastEndpoints;
+using FluentValidation;
+using Knots.DTO.Role;
+
 namespace Knots.Validators.Role;
 
-public class DeleteRoleDtoValidator
+public class DeleteRoleDtoValidator : Validator<DeleteRoleDto>
 {
-    
+    public DeleteRoleDtoValidator()
+    {
+        RuleFor(x => x.Id)
+            .NotEmpty()
+            .WithMessage("Id cannot be empty");
+    }
 }
\ No newline at end of file
diff --git a/Knots/Validators/Role/GetRoleDtoValidator.cs b/Knots/Validators/Role/GetRoleDtoValidator.cs
index bd7b33d..817b029 100644
--- a/Knots/Validators/Role/GetRoleDtoValidator.cs
+++ b/Knots/Validators/Role/GetRoleDtoValidator.cs
@@ -1,6 +1,17 @@
+using FastEndpoints;
+using FluentValidation;
+using Knots.DTO.Role;
+
 namespace Knots.Validators.Role;
 
-public class GetRoleDtoValidator
+public class GetRoleDtoValidator : Validator<GetRoleDto>
 {
-    
+    public GetRoleDtoValidator()
+    {
+        RuleFor(x => x.Libelle)
+            .NotEmpty()
+            .WithMessage("Libelle cannot be empty")
+            .MaximumLength(50)
+            .WithMessage("Libelle maximum length is 50");
+    }
 }
\ No newline at end of file
diff --git a/Knots/obj/Debug/net8.0/Knots.AssemblyInfo.cs b/Knots/obj/Debug/net8.0/Knots.AssemblyInfo.cs
index c6018ed..a53a225 100644
--- a/Knots/obj/Debug/net8.0/Knots.AssemblyInfo.cs
+++ b/Knots/obj/Debug/net8.0/Knots.AssemblyInfo.cs
@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("Knots")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+dc9aa8c840b4064bd32793b90b273caaf36c360f")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+3a833724031a4e7076b11dcb48bd7aa2c7376432")]
 [assembly: System.Reflection.AssemblyProductAttribute("Knots")]
 [assembly: System.Reflection.AssemblyTitleAttribute("Knots")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
diff --git a/Knots/obj/Debug/net8.0/Knots.AssemblyInfoInputs.cache b/Knots/obj/Debug/net8.0/Knots.AssemblyInfoInputs.cache
index eb2a92d..a0a0275 100644
--- a/Knots/obj/Debug/net8.0/Knots.AssemblyInfoInputs.cache
+++ b/Knots/obj/Debug/net8.0/Knots.AssemblyInfoInputs.cache
@@ -1 +1 @@
-1b8ae9dfe4e2b2618cd70cfa49fe9679d0b7d9b1c2eb5ae991b2036ea16d6dfd
+ea906d69ee00ac134acfca751c691f6f874ba5373dc51f1200fce206bc66abe5
diff --git a/Knots/obj/rider.project.model.nuget.info b/Knots/obj/rider.project.model.nuget.info
index 4f31dc6..7008409 100644
--- a/Knots/obj/rider.project.model.nuget.info
+++ b/Knots/obj/rider.project.model.nuget.info
@@ -1 +1 @@
-17733319213920905
\ No newline at end of file
+17733307741808199
\ No newline at end of file