diff --git a/fawltydeps/main.py b/fawltydeps/main.py
index 852f45d7..bef5bc12 100644
--- a/fawltydeps/main.py
+++ b/fawltydeps/main.py
@@ -7,7 +7,7 @@
 from enum import Enum, auto
 from operator import attrgetter
 from pathlib import Path
-from typing import List, Optional, Set, TextIO
+from typing import List, Optional, Set, TextIO, no_type_check
 
 from fawltydeps import extract_imports
 from fawltydeps.check import compare_imports_to_dependencies
@@ -21,6 +21,12 @@
     UnusedDependency,
 )
 
+if sys.version_info >= (3, 8):
+    import importlib.metadata as importlib_metadata
+else:
+    import importlib_metadata
+
+
 logger = logging.getLogger(__name__)
 
 
@@ -33,6 +39,17 @@ class Action(Enum):
     REPORT_UNUSED = auto()
 
 
+@no_type_check
+def version() -> str:
+    """Returns the version of fawltydeps."""
+
+    # This function is extracted to allow annotation with `@no_type_check`.
+    # Using `#type: ignore` on the line below leads to an
+    # "unused type ignore comment" MyPy error in python's version 3.8 and
+    # higher.
+    return str(importlib_metadata.version("fawltydeps"))
+
+
 @dataclass
 class Analysis:
     """Result from FawltyDeps analysis, to be presented to the user."""
@@ -132,6 +149,13 @@ def main() -> int:
         const={Action.REPORT_UNDECLARED, Action.REPORT_UNUSED},
         help="Report both undeclared and unused dependencies",
     )
+    parser.add_argument(
+        "-V",
+        "--version",
+        action="version",
+        version=f"FawltyDeps v{version()}",
+        help=("Print the version number of FawltyDeps"),
+    )
     select_action.add_argument(
         "--check-undeclared",
         dest="actions",
diff --git a/poetry.lock b/poetry.lock
index 0eda9ece..74403f21 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,13 +1,10 @@
 [[package]]
 name = "argcomplete"
-version = "2.0.0"
+version = "1.10.3"
 description = "Bash tab completion for argparse"
 category = "dev"
 optional = false
-python-versions = ">=3.6"
-
-[package.dependencies]
-importlib-metadata = {version = ">=0.23,<5", markers = "python_version == \"3.7\""}
+python-versions = "*"
 
 [package.extras]
 test = ["coverage", "flake8", "pexpect", "wheel"]
@@ -158,9 +155,9 @@ testing = ["covdefaults (>=2.2.2)", "coverage (>=7.0.1)", "pytest (>=7.2)", "pyt
 
 [[package]]
 name = "importlib-metadata"
-version = "4.13.0"
+version = "5.2.0"
 description = "Read metadata from Python packages"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=3.7"
 
@@ -169,7 +166,7 @@ typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
 zipp = ">=0.5"
 
 [package.extras]
-docs = ["furo", "jaraco.packaging (>=9)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (>=3.5)"]
+docs = ["furo", "jaraco.packaging (>=9)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-lint"]
 perf = ["ipython"]
 testing = ["flake8 (<5)", "flufl.flake8", "importlib-resources (>=1.3)", "packaging", "pyfakefs", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=1.3)", "pytest-flake8", "pytest-mypy (>=0.9.1)", "pytest-perf (>=0.9.2)"]
 
@@ -432,7 +429,7 @@ python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 name = "zipp"
 version = "3.11.0"
 description = "Backport of pathlib-compatible object wrapper for zip files"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=3.7"
 
@@ -443,12 +440,12 @@ testing = ["flake8 (<5)", "func-timeout", "jaraco.functools", "jaraco.itertools"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7.2"
-content-hash = "cca7500c5ae2dae19f39740be5ded33c3c048ed5acd4898cccbbf55aeb2626bf"
+content-hash = "a4f2d1af4030c992db990af6d33127f8cba91e3198b784b3fd4516fd51357b81"
 
 [metadata.files]
 argcomplete = [
-    {file = "argcomplete-2.0.0-py2.py3-none-any.whl", hash = "sha256:cffa11ea77999bb0dd27bb25ff6dc142a6796142f68d45b1a26b11f58724561e"},
-    {file = "argcomplete-2.0.0.tar.gz", hash = "sha256:6372ad78c89d662035101418ae253668445b391755cfe94ea52f1b9d22425b20"},
+    {file = "argcomplete-1.10.3-py2.py3-none-any.whl", hash = "sha256:d8ea63ebaec7f59e56e7b2a386b1d1c7f1a7ae87902c9ee17d377eaa557f06fa"},
+    {file = "argcomplete-1.10.3.tar.gz", hash = "sha256:a37f522cf3b6a34abddfedb61c4546f60023b3799b22d1cd971eacdc0861530a"},
 ]
 astroid = [
     {file = "astroid-2.13.3-py3-none-any.whl", hash = "sha256:14c1603c41cc61aae731cad1884a073c4645e26f126d13ac8346113c95577f3b"},
@@ -505,8 +502,8 @@ filelock = [
     {file = "filelock-3.9.0.tar.gz", hash = "sha256:7b319f24340b51f55a2bf7a12ac0755a9b03e718311dac567a0f4f7fabd2f5de"},
 ]
 importlib-metadata = [
-    {file = "importlib_metadata-4.13.0-py3-none-any.whl", hash = "sha256:8a8a81bcf996e74fee46f0d16bd3eaa382a7eb20fd82445c3ad11f4090334116"},
-    {file = "importlib_metadata-4.13.0.tar.gz", hash = "sha256:dd0173e8f150d6815e098fd354f6414b0f079af4644ddfe90c71e2fc6174346d"},
+    {file = "importlib_metadata-5.2.0-py3-none-any.whl", hash = "sha256:0eafa39ba42bf225fc00e67f701d71f85aead9f878569caf13c3724f704b970f"},
+    {file = "importlib_metadata-5.2.0.tar.gz", hash = "sha256:404d48d62bba0b7a77ff9d405efd91501bef2e67ff4ace0bed40a0cf28c3c7cd"},
 ]
 iniconfig = [
     {file = "iniconfig-2.0.0-py3-none-any.whl", hash = "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374"},
diff --git a/pyproject.toml b/pyproject.toml
index edf554ce..e441ee62 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,6 +32,7 @@ fawltydeps = "fawltydeps.main:main"
 # These are the main dependencies for fawltydeps at runtime.
 # Do not add anything here that is only needed by CI/tests/linters/developers
 python = "^3.7.2"
+importlib_metadata = {version = "^5.0.0", python = "<3.8"}
 isort = "^5.10"
 tomli = {version = "^2.0.1", python = "<3.11"}
 typing-extensions = {version = "^4.4.0", python = "<3.8"}