diff --git a/src/InternshipSystem.Api/Controllers/DocumentsController.cs b/src/InternshipSystem.Api/Controllers/DocumentsController.cs
index 3eb8585..dc9a22a 100644
--- a/src/InternshipSystem.Api/Controllers/DocumentsController.cs
+++ b/src/InternshipSystem.Api/Controllers/DocumentsController.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Diagnostics;
 using System.Linq;
+using System.Threading;
 using System.Threading.Tasks;
 using AutoMapper;
 using InternshipSystem.Api.Queries;
@@ -42,10 +43,10 @@ namespace InternshipSystem.Api.Controllers
         [ProducesResponseType(StatusCodes.Status404NotFound)]
         [ProducesResponseType(StatusCodes.Status401Unauthorized)]
         [Authorize(Policy = Policies.RegisteredOnly)]
-        public async Task<ActionResult> AddDocumentToInternship([FromBody] DocumentPublishRequest documentRequest)
+        public async Task<ActionResult> AddDocumentToInternship([FromBody] DocumentPublishRequest documentRequest, CancellationToken cancellationToken)
         {
             var validator = new DocumentPublishRequest.Validator();
-            var validationResult = await validator.ValidateAsync(documentRequest);
+            var validationResult = await validator.ValidateAsync(documentRequest, cancellationToken);
             
             if (!validationResult.IsValid)
             {
@@ -59,7 +60,7 @@ namespace InternshipSystem.Api.Controllers
             var internship = await Context.Entry(edition)
                 .Collection(e => e.Internships)
                 .Query()
-                .SingleAsync(i => i.Student.Id == personNumber);
+                .SingleAsync(i => i.Student.Id == personNumber, cancellationToken);
 
             var document = Mapper.Map<Document>(documentRequest);