diff --git a/.gitignore b/.gitignore
index c9e4796..7f9d314 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,11 @@
 logs
 dist
+build/
 *.egg-info
 *.pyc
+__pycache__/
 *.db
 config.inc.sh
 make_profile.db
+test/make.svg
+test/target11
diff --git a/make_profiler/dot_export.py b/make_profiler/dot_export.py
index 85daa62..8356c2f 100755
--- a/make_profiler/dot_export.py
+++ b/make_profiler/dot_export.py
@@ -56,7 +56,7 @@ def critical_path(influences, dependencies, inputs, timing):
     cp = set()
     timing_tags = {}
     for t, z in targets.items():
-        if z["early_start"] == z["late_start"]:
+        if z["early_start"] == z.get("late_start"):
             cp.add(t)
         if z["pin_timing_tag"]:
             if z["timing_tag"] not in timing_tags:
diff --git a/make_profiler/parser.py b/make_profiler/parser.py
index e99cd1b..04f66bc 100644
--- a/make_profiler/parser.py
+++ b/make_profiler/parser.py
@@ -48,7 +48,7 @@ def parse(fd):
     def parse_target(token):
         line = token[1]
         target, deps, order_deps, docstring = re.match(
-            '(.+): \s? ([^|#]+)? \s? [|]? \s? ([^##]+)? \s?  \s? ([#][#].+)?',
+            r'(.+): \s? ([^|#]+)? \s? [|]? \s? ([^##]+)? \s?  \s? ([#][#].+)?',
             line,
             re.X
         ).groups()
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..8359138
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,32 @@
+[build-system]
+requires = ["setuptools>=61.0"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "make-profiler"
+version = "1.0.0"
+authors = [
+  { name="Darafei Praliaskouski", email="komzpa@gojuno.com" },
+]
+maintainers = [
+  { name="Alexander Verbitsky", email="averbitsky@gojuno.com" },
+]
+description = "Profiler for Makefiles"
+readme = "README.md"
+requires-python = ">=3.12"
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "Topic :: Utilities",
+    "Programming Language :: Python :: 3.12",
+    "License :: OSI Approved :: BSD License",
+]
+dependencies = [
+    "more-itertools>=6.0.0",
+]
+
+[project.scripts]
+profile_make_clean = "make_profiler.cmd_clean:main"
+profile_make = "make_profiler.__main__:main"
+
+[project.urls]
+Homepage = "https://github.com/gojuno/make-profiler"
diff --git a/setup.py b/setup.py
index 516cc5c..fd411ea 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 import re
 from setuptools import setup
 
-MIN_PYTHON = (2, 7)
+MIN_PYTHON = (3, 12)
 if sys.version_info < MIN_PYTHON:
     sys.stderr.write("Python {}.{} or later is required\n".format(*MIN_PYTHON))
     sys.exit(1)
@@ -36,7 +36,7 @@ def read(fname):
     packages=['make_profiler'],
     test_suite='test',
     install_requires=(
-        'more-itertools==2.4.1',
+        'more-itertools',
     ),
     entry_points={
         'console_scripts': [
@@ -48,7 +48,7 @@ def read(fname):
     classifiers=[
         'Development Status :: 5 - Production/Stable',
         'Topic :: Utilities',
-        'Programming Language :: Python',
+        'Programming Language :: Python :: 3.12',
         'License :: OSI Approved :: BSD License',
     ],
 )