diff --git a/Apis/cv-matcher-data/CvMatcherDbContext.cs b/Apis/cv-matcher-data/CvMatcherDbContext.cs
index ab51c35..d2cde82 100644
--- a/Apis/cv-matcher-data/CvMatcherDbContext.cs
+++ b/Apis/cv-matcher-data/CvMatcherDbContext.cs
@@ -36,7 +36,7 @@ public sealed class CvMatcherDbContext : DbContext
             entity.Property(x => x.JobDocumentId).HasMaxLength(64).IsRequired();
             entity.Property(x => x.ResultJson).IsRequired();
             entity.Property(x => x.CreatedAt).HasDefaultValueSql("SYSUTCDATETIME()");
-            entity.HasIndex(x => new { x.CvDocumentId, x.JobDocumentId }).IsUnique();
+            entity.HasIndex(x => new { x.CvDocumentId, x.JobDocumentId, x.Language }).IsUnique();
         });
 
         modelBuilder.Entity<CvMatcherChatCacheEntity>(entity =>