diff --git a/MANIFEST.in b/MANIFEST.in
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,8 +1,9 @@
 include Makefile
 include requirements.txt
-include requirements-swh.txt
-include requirements-http.txt
 include requirements-db.txt
+include requirements-http.txt
+include requirements-logging.txt
+include requirements-swh.txt
 include version.txt
 recursive-include swh/core/sql *.sql
 recursive-include swh py.typed
diff --git a/requirements-logging.txt b/requirements-logging.txt
new file mode 100644
--- /dev/null
+++ b/requirements-logging.txt
@@ -0,0 +1 @@
+systemd-python
diff --git a/requirements.txt b/requirements.txt
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,2 @@
 Deprecated
 PyYAML
-systemd-python
diff --git a/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -51,7 +51,8 @@
     install_requires=parse_requirements(None, 'swh'),
     setup_requires=['vcversioner'],
     extras_require={
-        'testing': parse_requirements('test', 'db', 'http'),
+        'testing': parse_requirements('test', 'db', 'http', 'logging'),
+        'logging': parse_requirements('logging'),
         'db': parse_requirements('db'),
         'http': parse_requirements('http'),
     },
diff --git a/tox.ini b/tox.ini
--- a/tox.ini
+++ b/tox.ini
@@ -4,6 +4,7 @@
 [testenv:py3-core]
 deps =
   -rrequirements-test.txt
+  -rrequirements-logging.txt
   .
 commands =
   pytest --doctest-modules {envsitepackagesdir}/swh/core/tests {posargs}