diff --git a/mongoengine/fields.py b/mongoengine/fields.py
index 37d5070a0..7b84acf58 100644
--- a/mongoengine/fields.py
+++ b/mongoengine/fields.py
@@ -1702,6 +1702,11 @@ def __getattr__(self, name):
             return getattr(obj, name)
         raise AttributeError
 
+    @property
+    def content_type(self):
+        # PyMongo deprecated content_type in favor of the GridFS contentType field.
+        return self.__getattr__("contentType")
+
     def __get__(self, instance, value):
         return self
 
diff --git a/tests/fields/test_file_field.py b/tests/fields/test_file_field.py
index 43bb0fdbf..e53cbf1c7 100644
--- a/tests/fields/test_file_field.py
+++ b/tests/fields/test_file_field.py
@@ -2,6 +2,7 @@
 import os
 import tempfile
 import unittest
+import warnings
 from io import BytesIO
 
 import gridfs
@@ -69,7 +70,9 @@ class PutFile(Document):
             == "<GridFSProxy: hello (%s)>" % result.the_file.grid_id
         )
         assert result.the_file.read() == text
-        assert result.the_file.content_type == content_type
+        with warnings.catch_warnings():
+            warnings.simplefilter("error", DeprecationWarning)
+            assert result.the_file.content_type == content_type
         result.the_file.delete()  # Remove file from GridFS
         PutFile.objects.delete()