diff --git a/backend/src/api/directors/entities/director.entity.ts b/backend/src/api/directors/entities/director.entity.ts
index 7d02d94cd61f85c9071d36d44d29a3b66df6f31a..b5af053c2606c4c526a5c5d1f9145431c859efe1 100644
--- a/backend/src/api/directors/entities/director.entity.ts
+++ b/backend/src/api/directors/entities/director.entity.ts
@@ -17,5 +17,5 @@ export class DirectorEntity implements Director {
 
   surname: string;
 
-  birthDate: Date;
+  birthDate: Date | null;
 }
diff --git a/backend/src/api/movies/entities/movie.entity.ts b/backend/src/api/movies/entities/movie.entity.ts
index e080561afe0455d62f2273b12889bcfa3cc0c156..d3d55e1534351e6c1994e0cc2231c316813c2ba8 100644
--- a/backend/src/api/movies/entities/movie.entity.ts
+++ b/backend/src/api/movies/entities/movie.entity.ts
@@ -19,7 +19,7 @@ export class MovieEntity implements Movie {
 
   intro: string;
 
-  picture: string;
+  picture: string | null;
 
   publishedAt: number;