diff --git a/pyperformance/__init__.py b/pyperformance/__init__.py
index 647d1072..7248ce02 100644
--- a/pyperformance/__init__.py
+++ b/pyperformance/__init__.py
@@ -34,10 +34,10 @@ def _is_devel_install():
     # This means it creates a link back to the checkout instead
     # of copying the files.
     try:
-        import toml
+        import packaging
     except ModuleNotFoundError:
         return False
-    sitepackages = os.path.dirname(os.path.dirname(toml.__file__))
+    sitepackages = os.path.dirname(os.path.dirname(packaging.__file__))
     if os.path.isdir(os.path.join(sitepackages, 'pyperformance')):
         return False
     if not os.path.exists(os.path.join(sitepackages, 'pyperformance.egg-link')):
diff --git a/pyperformance/_pyproject_toml.py b/pyperformance/_pyproject_toml.py
index e7c6563c..ab6f6f85 100644
--- a/pyperformance/_pyproject_toml.py
+++ b/pyperformance/_pyproject_toml.py
@@ -18,7 +18,11 @@
 import packaging.specifiers
 import packaging.utils
 import packaging.version
-import toml
+
+try:
+    import tomllib
+except ImportError:
+    import tomli as tomllib
 
 from ._utils import check_name
 
@@ -52,7 +56,7 @@ def parse_pyproject_toml(text, rootdir, name=None, *,
                          tools=None,
                          requirefiles=True,
                          ):
-    data = toml.loads(text)
+    data = tomllib.loads(text)
     unused = list(data)
 
     for section, normalize in SECTIONS.items():
diff --git a/pyperformance/data-files/requirements.txt b/pyperformance/data-files/requirements.txt
index 9c1bbf8f..4da6b34e 100644
--- a/pyperformance/data-files/requirements.txt
+++ b/pyperformance/data-files/requirements.txt
@@ -2,17 +2,13 @@
 # This file is autogenerated by pip-compile with Python 3.11
 # by the following command:
 #
-#    pip-compile --output-file=requirements.txt requirements.in
+#    pip-compile --output-file=pyperformance/data-files/requirements.txt requirements.in
 #
-packaging==21.3
+packaging==23.1
     # via -r requirements.in
-psutil==5.9.0
+psutil==5.9.5
     # via
     #   -r requirements.in
     #   pyperf
-pyparsing==3.0.8
-    # via packaging
 pyperf==2.6.0
     # via -r requirements.in
-toml==0.10.2
-    # via -r requirements.in
diff --git a/pyproject.toml b/pyproject.toml
index f69c39c4..369ea0b9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -59,7 +59,11 @@ classifiers = [
     'Programming Language :: Python',
 ]
 requires-python = ">=3.7"
-dependencies = ["pyperf", "toml", "packaging"]
+dependencies = [
+    "pyperf",
+    "tomli; python_version < '3.11'",
+    "packaging",
+]
 
 [project.optional-dependencies]
 dev = [
diff --git a/requirements.in b/requirements.in
index 0d76bbd8..55f432ef 100644
--- a/requirements.in
+++ b/requirements.in
@@ -13,7 +13,7 @@ pyperf
 
 # for benchmark metadata:
 packaging
-toml
+tomli; python_version < '3.11'
 
 
 # Optional dependencies