diff --git a/setup.py b/setup.py
index 5b65319..d772e5b 100755
--- a/setup.py
+++ b/setup.py
@@ -11,18 +11,18 @@ setup(
     license='GNU AGPLv3+',
 
     install_requires=[
-        'beancount>=2.2',
-        'PyYAML>=3.0',
-        'regex',
+        'beancount>=2.2',  # Debian:beancount
+        'PyYAML>=3.0',  # Debian:python3-yaml
+        'regex',  # Debian:python3-regex
         'rt>=2.0',
     ],
     setup_requires=[
         'pytest-mypy',
-        'pytest-runner',
+        'pytest-runner',  # Debian:python3-pytest-runner
     ],
     tests_require=[
-        'mypy>=0.770',
-        'pytest',
+        'mypy>=0.770',  # Debian:python3-mypy
+        'pytest',  # Debian:python3-pytest
     ],
 
     packages=[