diff --git a/debian/control b/debian/control
--- a/debian/control
+++ b/debian/control
@@ -12,7 +12,7 @@
                python3-sqlalchemy,
                python3-swh.core,
                python3-swh.loader.core (>= 0.0.32),
-               python3-swh.model (>= 0.0.18),
+               python3-swh.model (>= 0.0.27),
                python3-swh.scheduler (>= 0.0.14),
                python3-swh.storage (>= 0.0.31),
                python3-swh.storage.schemata,
@@ -24,7 +24,7 @@
 Architecture: all
 Depends: dpkg-dev,
          python3-swh.loader.core (>= 0.0.32),
-         python3-swh.model (>= 0.0.18),
+         python3-swh.model (>= 0.0.27),
          python3-swh.scheduler (>= 0.0.14),
          python3-swh.storage (>= 0.0.31),
          python3-swh.storage.schemata,
diff --git a/requirements-swh.txt b/requirements-swh.txt
--- a/requirements-swh.txt
+++ b/requirements-swh.txt
@@ -1,5 +1,5 @@
 swh.core
 swh.loader.core >= 0.0.32
-swh.model >= 0.0.18
+swh.model >= 0.0.27
 swh.scheduler >= 0.0.14
 swh.storage[schemata]
diff --git a/swh/loader/debian/loader.py b/swh/loader/debian/loader.py
--- a/swh/loader/debian/loader.py
+++ b/swh/loader/debian/loader.py
@@ -172,18 +172,10 @@
     if isinstance(name, bytes):
         name = name.decode('utf-8')
 
-    ret = {
-        'name': name,
-    }
-
-    hashes = hashutil.hash_path(filepath)
-    for hash in hashes:
-        if hash == 'length':
-            ret[hash] = hashes[hash]
-            continue
-        ret[hash] = hashutil.hash_to_hex(hashes[hash])
-
-    return ret
+    hashes = hashutil.MultiHash.from_path(filepath).hexdigest()
+    hashes['name'] = name
+    hashes['length'] = os.path.getsize(filepath)
+    return hashes
 
 
 def get_package_metadata(package, dsc_path, extracted_path):
diff --git a/swh/loader/debian/tests/__init__.py b/swh/loader/debian/tests/__init__.py
new file mode 100644
diff --git a/swh/loader/debian/tests/resources/onefile.txt b/swh/loader/debian/tests/resources/onefile.txt
new file mode 100644
--- /dev/null
+++ b/swh/loader/debian/tests/resources/onefile.txt
@@ -0,0 +1 @@
+This is a file to retrieve information from in a test context
diff --git a/swh/loader/debian/tests/test_loader.py b/swh/loader/debian/tests/test_loader.py
new file mode 100644
--- /dev/null
+++ b/swh/loader/debian/tests/test_loader.py
@@ -0,0 +1,34 @@
+# Copyright (C) 2018  The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+from nose.plugins.attrib import attr
+from nose.tools import istest
+from unittest import TestCase
+
+from swh.loader.debian.loader import get_file_info
+
+
+RESOURCES_PATH = './swh/loader/debian/tests/resources'
+
+
+@attr('fs')
+class TestFileInfo(TestCase):
+
+    @istest
+    def get_file_info(self):
+        path = '%s/%s' % (RESOURCES_PATH, 'onefile.txt')
+
+        actual_info = get_file_info(path)
+
+        expected_info = {
+            'name': 'onefile.txt',
+            'length': 62,
+            'sha1': '135572f4ac013f49e624612301f9076af1eacef2',
+            'sha1_git': '1d62cd247ef251d52d98bbd931d44ad1f967ea99',
+            'sha256': '40f1a3cbe9355879319759bae1a6ba09cbf34056e79e951cd2dc0adbff169b9f',  # noqa
+            'blake2s256': '4072cf9a0017ad7705a9995bbfbbc098276e6a3afea8d84ab54bff6381c897ab',  # noqa
+        }
+
+        self.assertEquals(actual_info, expected_info)