diff --git a/find_duplicate_files/find_duplicate_files.py b/find_duplicate_files/find_duplicate_files.py
index e6c4380..e1caa06 100644
--- a/find_duplicate_files/find_duplicate_files.py
+++ b/find_duplicate_files/find_duplicate_files.py
@@ -47,8 +47,9 @@ class find_duplicate_files:
                     if file.is_file():
                         hash = hashlib.sha256()
                         with open(file.path, 'rb') as file_pointer:
-                            digest = hashlib.file_digest(file_pointer, "sha256")
-                            files[digest.hexdigest()] = file.path
+                            file_content = file_pointer.read()
+                            hash.update(file_content.encode('utf-8'))
+                            files[hash.hexdigest()] = file.path
                     elif file.is_dir(follow_symlinks=False):
                         more_files = self.recursive_scandir(
                             file.path,