diff --git a/Services/CandidateService.cs b/Services/CandidateService.cs
index f0e7e9e..ae41bb6 100644
--- a/Services/CandidateService.cs
+++ b/Services/CandidateService.cs
@@ -1259,9 +1259,13 @@ namespace BMA.EHR.Recurit.Exam.Service.Services
             if (candidate == null)
                 throw new Exception(GlobalMessages.ExamNotFound);
 
+            string profileImgId = candidate.ProfileImg.Id.ToString();
             if (candidate.ProfileImg != null)
             {
-                await DeleteDocument(candidate.ProfileImg.Id.ToString());
+                //ลบ FK ในเบสก่อนแล้วค่อยไปลบที่ minIo
+                candidate.ProfileImg = null;
+                await _context.SaveChangesAsync();
+                await DeleteDocument(profileImgId);
             }
 
             var doc = await _minioService.UploadFileAsync(file);
@@ -1282,9 +1286,13 @@ namespace BMA.EHR.Recurit.Exam.Service.Services
             if (candidate == null)
                 throw new Exception(GlobalMessages.ExamNotFound);
 
+            string profileImgId = candidate.ProfileImg.Id.ToString();
             if (candidate.ProfileImg != null)
             {
-                await DeleteDocument(candidate.ProfileImg.Id.ToString());
+                //ลบ FK ในเบสก่อนแล้วค่อยไปลบที่ minIo
+                candidate.ProfileImg = null;
+                await _context.SaveChangesAsync();
+                await DeleteDocument(profileImgId);
             }
 
             var doc = await _minioService.UploadFileAsync(file);