diff --git a/backend/documents/tests.py b/backend/documents/tests.py
index 135eac25..2f0bd37c 100644
--- a/backend/documents/tests.py
+++ b/backend/documents/tests.py
@@ -12,7 +12,7 @@ def setUp(self):
         self.upload_end_point = f"{base}upload/"
         # Use an existing test PDF file or create a dummy file
         self.valid_pdf = SimpleUploadedFile(
-            "test.pdf", b"file_content", content_type="application/pdf"
+            "test.pdf", b"file_content", content_type="multipart/form-data"
         )
         self.non_valid_file = SimpleUploadedFile(
             "test.txt", b"file_content", content_type="text/plain"