diff --git a/Makefile b/Makefile
index c371814..d3480fa 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 black:
-	poetry run black kosmorro tests setup.py
+	poetry run black kosmorro tests
 
 .PHONY: tests
 tests:
diff --git a/kosmorro/__main__.py b/kosmorro/__main__.py
index 70ed03b..29863e7 100644
--- a/kosmorro/__main__.py
+++ b/kosmorro/__main__.py
@@ -21,14 +21,12 @@ import sys
 
 from babel.dates import format_date
 from kosmorrolib import Position, get_ephemerides, get_events, get_moon_phase
-from kosmorrolib.__version__ import __version__ as kosmorrolib_version
 from kosmorrolib.exceptions import OutOfRangeDateError
 from datetime import date
 
 from . import dumper, environment, debug
 from .date import parse_date
-from .utils import colored, set_colors_activated
-from .__version__ import __version__ as kosmorro_version
+from .utils import KOSMORRO_VERSION, KOSMORROLIB_VERSION, colored, set_colors_activated
 from .exceptions import UnavailableFeatureError, OutOfRangeDateError as DateRangeError
 from kosmorro.i18n.utils import _
 
@@ -198,12 +196,12 @@ def output_version() -> bool:
         sys.version_info[1],
         sys.version_info[2],
     )
-    print("Kosmorro %s" % kosmorro_version)
+    print("Kosmorro %s" % KOSMORRO_VERSION)
     print(
         _(
             "Running on Python {python_version} "
             "with Kosmorrolib v{kosmorrolib_version}"
-        ).format(python_version=python_version, kosmorrolib_version=kosmorrolib_version)
+        ).format(python_version=python_version, kosmorrolib_version=KOSMORROLIB_VERSION)
     )
 
     return True
diff --git a/kosmorro/dumper.py b/kosmorro/dumper.py
index 6758501..844bf99 100644
--- a/kosmorro/dumper.py
+++ b/kosmorro/dumper.py
@@ -32,14 +32,14 @@ from termcolor import colored
 from kosmorrolib import AsterEphemerides, Event, EventType
 from kosmorrolib.model import ASTERS, MoonPhase
 
-from .i18n.utils import _, FULL_DATE_FORMAT, SHORT_DATETIME_FORMAT, TIME_FORMAT
+from .i18n.utils import _
 from .i18n import strings
-from .__version__ import __version__ as version
 from .exceptions import (
     CompileError,
     UnavailableFeatureError as KosmorroUnavailableFeatureError,
 )
 from .debug import debug_print
+from .utils import KOSMORRO_VERSION
 
 
 class Dumper(ABC):
@@ -301,7 +301,7 @@ class _LatexDumper(Dumper):
     def add_strings(
         self, document: str, kosmorro_logo_path: str, moon_phase_graphics: str
     ) -> str:
-        document = document.replace("+++KOSMORRO-VERSION+++", version)
+        document = document.replace("+++KOSMORRO-VERSION+++", KOSMORRO_VERSION)
         document = document.replace("+++KOSMORRO-LOGO+++", kosmorro_logo_path)
         document = document.replace("+++DOCUMENT-TITLE+++", _("Overview of your sky"))
         document = document.replace(
diff --git a/kosmorro/locales/messages.pot b/kosmorro/locales/messages.pot
index bf05028..7814bb9 100644
--- a/kosmorro/locales/messages.pot
+++ b/kosmorro/locales/messages.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
-"POT-Creation-Date: 2022-03-19 13:28+0100\n"
+"POT-Creation-Date: 2022-03-20 11:00+0100\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -17,98 +17,98 @@ msgstr ""
 "Content-Transfer-Encoding: 8bit\n"
 "Generated-By: Babel 2.9.1\n"
 
-#: kosmorro/__main__.py:63
+#: kosmorro/__main__.py:61
 msgid ""
 "Save the planet and paper!\n"
 "Consider printing your PDF document only if really necessary, and use the"
 " other side of the sheet."
 msgstr ""
 
-#: kosmorro/__main__.py:72
+#: kosmorro/__main__.py:70
 msgid ""
 "PDF output will not contain the ephemerides, because you didn't provide "
 "the observation coordinates."
 msgstr ""
 
-#: kosmorro/__main__.py:117
+#: kosmorro/__main__.py:115
 msgid "The file could not be saved in \"{path}\": {error}"
 msgstr ""
 
-#: kosmorro/__main__.py:131
+#: kosmorro/__main__.py:129
 msgid "Please provide a file path to export in this format (--output)."
 msgstr ""
 
-#: kosmorro/__main__.py:164
+#: kosmorro/__main__.py:162
 msgid "Moon phase can only be computed between {min_date} and {max_date}"
 msgstr ""
 
-#: kosmorro/__main__.py:203
+#: kosmorro/__main__.py:201
 msgid "Running on Python {python_version} with Kosmorrolib v{kosmorrolib_version}"
 msgstr ""
 
-#: kosmorro/__main__.py:216
+#: kosmorro/__main__.py:214
 msgid ""
 "Compute the ephemerides and the events for a given date and a given "
 "position on Earth."
 msgstr ""
 
-#: kosmorro/__main__.py:219
+#: kosmorro/__main__.py:217
 msgid ""
 "By default, only the events will be computed for today.\n"
 "To compute also the ephemerides, latitude and longitude arguments are "
 "needed."
 msgstr ""
 
-#: kosmorro/__main__.py:232
+#: kosmorro/__main__.py:230
 msgid "Show the program version"
 msgstr ""
 
-#: kosmorro/__main__.py:240
+#: kosmorro/__main__.py:238
 msgid "The format to output the information to"
 msgstr ""
 
-#: kosmorro/__main__.py:247
+#: kosmorro/__main__.py:245
 msgid ""
 "The observer's latitude on Earth. Can also be set in the "
 "KOSMORRO_LATITUDE environment variable."
 msgstr ""
 
-#: kosmorro/__main__.py:257
+#: kosmorro/__main__.py:255
 msgid ""
 "The observer's longitude on Earth. Can also be set in the "
 "KOSMORRO_LONGITUDE environment variable."
 msgstr ""
 
-#: kosmorro/__main__.py:267
+#: kosmorro/__main__.py:265
 msgid ""
 "The date for which the ephemerides must be calculated. Can be in the "
 "YYYY-MM-DD format or an interval in the \"[+-]YyMmDd\" format (with Y, M,"
 " and D numbers). Defaults to current date."
 msgstr ""
 
-#: kosmorro/__main__.py:278
+#: kosmorro/__main__.py:276
 msgid ""
 "The timezone to display the hours in (e.g. 2 for UTC+2 or -3 for UTC-3). "
 "Can also be set in the KOSMORRO_TIMEZONE environment variable."
 msgstr ""
 
-#: kosmorro/__main__.py:287
+#: kosmorro/__main__.py:285
 msgid "Disable the colors in the console."
 msgstr ""
 
-#: kosmorro/__main__.py:294
+#: kosmorro/__main__.py:292
 msgid ""
 "A file to export the output to. If not given, the standard output is "
 "used. This argument is needed for PDF format."
 msgstr ""
 
-#: kosmorro/__main__.py:303
+#: kosmorro/__main__.py:301
 msgid ""
 "Do not generate a graph to represent the rise and set times in the PDF "
 "format."
 msgstr ""
 
-#: kosmorro/__main__.py:311
+#: kosmorro/__main__.py:309
 msgid "Show debugging messages"
 msgstr ""
 
diff --git a/kosmorro/utils.py b/kosmorro/utils.py
index 4ee8da8..2d42e82 100644
--- a/kosmorro/utils.py
+++ b/kosmorro/utils.py
@@ -2,6 +2,14 @@
 
 from termcolor import colored as do_color
 
+try:
+    from importlib.metadata import version
+except ImportError:
+    from importlib_metadata import version
+
+KOSMORRO_VERSION = version("kosmorro")
+KOSMORROLIB_VERSION = version("kosmorrolib")
+
 
 global _COLORS_ACTIVATED
 
diff --git a/poetry.lock b/poetry.lock
index 9f4b9c6..46bda78 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -98,7 +98,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 name = "importlib-metadata"
 version = "4.11.3"
 description = "Read metadata from Python packages"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=3.7"
 
@@ -259,7 +259,7 @@ six = ">=1.5"
 
 [[package]]
 name = "pytz"
-version = "2021.3"
+version = "2022.1"
 description = "World timezone definitions, modern and historical"
 category = "main"
 optional = false
@@ -346,7 +346,7 @@ python-versions = ">=3.6"
 name = "typing-extensions"
 version = "4.1.1"
 description = "Backported and Experimental Type Hints for Python 3.6+"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=3.6"
 
@@ -354,7 +354,7 @@ python-versions = ">=3.6"
 name = "zipp"
 version = "3.7.0"
 description = "Backport of pathlib-compatible object wrapper for zip files"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=3.7"
 
@@ -365,7 +365,7 @@ testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-
 [metadata]
 lock-version = "1.1"
 python-versions = ">=3.7,<3.11"
-content-hash = "4c2045cb19d088e3205728efd723e8255ded94f211f21ca7f64aea90c05fe3ad"
+content-hash = "4973cb3aa5b8437ba3e2cd3c9daee2a168e242b534b6aa9b039b79af7dd2e270"
 
 [metadata.files]
 atomicwrites = [
@@ -484,8 +484,8 @@ python-dateutil = [
     {file = "python_dateutil-2.8.2-py2.py3-none-any.whl", hash = "sha256:961d03dc3453ebbc59dbdea9e4e11c5651520a876d0f4db161e8674aae935da9"},
 ]
 pytz = [
-    {file = "pytz-2021.3-py2.py3-none-any.whl", hash = "sha256:3672058bc3453457b622aab7a1c3bfd5ab0bdae451512f6cf25f64ed37f5b87c"},
-    {file = "pytz-2021.3.tar.gz", hash = "sha256:acad2d8b20a1af07d4e4c9d2e9285c5ed9104354062f275f3fcd88dcef4f1326"},
+    {file = "pytz-2022.1-py2.py3-none-any.whl", hash = "sha256:e68985985296d9a66a881eb3193b0906246245294a881e7c8afe623866ac6a5c"},
+    {file = "pytz-2022.1.tar.gz", hash = "sha256:1e760e2fe6a8163bc0b3d9a19c4f84342afa0a2affebfaa84b01b978a02ecaa7"},
 ]
 sgp4 = [
     {file = "sgp4-2.20-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:b2169cd536355fc67e3870acea34c4fc22b2ccecab2c0bf45a01edfe646fe3d0"},
diff --git a/pyproject.toml b/pyproject.toml
index 3a25a9a..5aa1eae 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,6 +21,7 @@ termcolor = "^1.1"
 kosmorrolib = "^1.0"
 python-dateutil = "^2.8"
 Babel = "^2.9"
+importlib-metadata = "^4.11"
 
 [tool.poetry.dev-dependencies]
 black = "^21.12b0"