diff --git a/identify/extensions.py b/identify/extensions.py
index 417352d..b0979ba 100644
--- a/identify/extensions.py
+++ b/identify/extensions.py
@@ -312,6 +312,7 @@ NAMES = {
     'Pipfile': EXTENSIONS['toml'],
     'Pipfile.lock': EXTENSIONS['json'],
     'PKGBUILD': {'text', 'bash', 'pkgbuild', 'alpm'},
+    'poetry.lock': EXTENSIONS['toml'],
     'pylintrc': EXTENSIONS['ini'] | {'pylintrc'},
     'README': EXTENSIONS['txt'],
     'Rakefile': EXTENSIONS['rb'],
diff --git a/setup.cfg b/setup.cfg
index c325ec1..9cd3fd1 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = identify
-version = 2.4.8
+version = 2.4.9
 description = File identification library for Python
 long_description = file: README.md
 long_description_content_type = text/markdown