diff --git a/requirements-test.txt b/requirements-test.txt
new file mode 100644
index 0000000..f3c7e8e
--- /dev/null
+++ b/requirements-test.txt
@@ -0,0 +1 @@
+nose
diff --git a/setup.py b/setup.py
index 7e4a47c..ecff0dc 100644
--- a/setup.py
+++ b/setup.py
@@ -1,53 +1,63 @@
 import hashlib
+import os
 
 from setuptools import setup, find_packages
 
 
-def parse_requirements():
+def parse_requirements(name=None):
+    if name:
+        reqf = 'requirements-%s.txt' % name
+    else:
+        reqf = 'requirements.txt'
+
     requirements = []
-    for reqf in ('requirements.txt', 'requirements-swh.txt'):
-        with open(reqf) as f:
-            for line in f.readlines():
-                line = line.strip()
-                if not line or line.startswith('#'):
-                    continue
-                requirements.append(line)
+    if not os.path.exists(reqf):
+        return requirements
+
+    with open(reqf) as f:
+        for line in f.readlines():
+            line = line.strip()
+            if not line or line.startswith('#'):
+                continue
+            requirements.append(line)
     return requirements
 
 
 extra_requirements = []
 
 pyblake2_hash_sets = [
     # Built-in implementation in Python 3.6+
     {'blake2s', 'blake2b'},
     # Potentially shipped by OpenSSL 1.1 (e.g. Python 3.5 in Debian stretch
     # has these)
     {'blake2s256', 'blake2b512'},
 ]
 
 for pyblake2_hashes in pyblake2_hash_sets:
     if not pyblake2_hashes - set(hashlib.algorithms_available):
         # The required blake2 hashes have been found
         break
 else:
     # None of the possible sets of blake2 hashes are available.
     # use pyblake2 instead
     extra_requirements.append('pyblake2')
 
 setup(
     name='swh.model',
     description='Software Heritage data model',
     author='Software Heritage developers',
     author_email='swh-devel@inria.fr',
     url='https://forge.softwareheritage.org/diffusion/DMOD/',
     packages=find_packages(),  # packages's modules
     scripts=[],   # scripts to package
-    install_requires=parse_requirements() + extra_requirements,
+    install_requires=(parse_requirements() + parse_requirements('swh') +
+                      extra_requirements),
     entry_points='''
         [console_scripts]
         swh-identify=swh.model.cli:identify
     ''',
     setup_requires=['vcversioner'],
+    extras_require={'testing': parse_requirements('test')},
     vcversioner={},
     include_package_data=True,
 )