diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index c95a673..319391d 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -40,7 +40,7 @@ jobs:
           flake8 . --count --exit-zero --show-source --statistics
       - name: Lint with ruff
         run: |
-          ruff .
+          ruff check .
       - name: Static typing with mypy
         run: |
           mypy --install-types --non-interactive .
diff --git a/README.md b/README.md
index 738a0c4..03d49ed 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,7 @@ pre-commit run --all-files
 
 # Alternative: run formatter, lint, and type checking
 python -m pip install isort black flake8 ruff mypy
-isort . ; black . ; flake8 . ; ruff . --fix ; mypy --install-types .
+isort . ; black . ; flake8 . ; ruff check . --fix ; mypy --install-types .
 
 # Run tests
 python -m pip install pytest python-dotenv
diff --git a/pyproject.toml b/pyproject.toml
index f8ddb68..a148a04 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,7 +37,7 @@ target-version = "py311"
 exclude = ["*_pb2.py", "*_pb2_grpc.py", "*.pyi"]
 line-length = 127
 
-select = [
+lint.select = [
     "B007", # Loop control variable {name} not used within loop body
     "B014", # Exception handler with duplicate exception
     "C",  # complexity
@@ -61,7 +61,7 @@ select = [
     "W",  # pycodestyle
 ]
 
-ignore = [
+lint.ignore = [
     "D203",  # 1 blank line required before class docstring
     "D213",  # Multi-line docstring summary should start at the second line
     # keep-runtime-annotations
@@ -69,14 +69,14 @@ ignore = [
     'UP007', # Non PEP604 annotations
 ]
 
-[tool.ruff.flake8-pytest-style]
+[tool.ruff.lint.flake8-pytest-style]
 fixture-parentheses = false
 
-[tool.ruff.per-file-ignores]
+[tool.ruff.lint.per-file-ignores]
 # Allow for main script to write to stdout
 "__main__.py" = ["T201"]
 
-[tool.ruff.mccabe]
+[tool.ruff.lint.mccabe]
 max-complexity = 25
 
 [project.optional-dependencies]
diff --git a/src/opower/utilities/base.py b/src/opower/utilities/base.py
index 1bea1d0..66aa3b9 100644
--- a/src/opower/utilities/base.py
+++ b/src/opower/utilities/base.py
@@ -1,6 +1,5 @@
 """Base class that each utility needs to extend."""
 
-
 from typing import Any, Optional
 
 import aiohttp
diff --git a/src/opower/utilities/coautilities.py b/src/opower/utilities/coautilities.py
index 19e4659..672e7f7 100644
--- a/src/opower/utilities/coautilities.py
+++ b/src/opower/utilities/coautilities.py
@@ -1,4 +1,5 @@
 """City of Austin Utilities."""
+
 from typing import Optional
 from urllib.parse import parse_qs, urlparse
 
diff --git a/src/opower/utilities/enmax.py b/src/opower/utilities/enmax.py
index 9acaff5..16419b0 100644
--- a/src/opower/utilities/enmax.py
+++ b/src/opower/utilities/enmax.py
@@ -1,4 +1,5 @@
 """Enmax."""
+
 from typing import Optional
 import xml.etree.ElementTree as ET
 
diff --git a/tests/opower/utilities/test_smud.py b/tests/opower/utilities/test_smud.py
index f8d4446..8fa1c68 100644
--- a/tests/opower/utilities/test_smud.py
+++ b/tests/opower/utilities/test_smud.py
@@ -1,4 +1,5 @@
 """Tests for SMUD."""
+
 import os
 import unittest