diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c0ffd9c6..b477cecb 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -62,16 +62,20 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
+      - name: Install Poetry
+        run: pipx install poetry
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
           python-version: "3.9"
-          cache: "pip"
-          cache-dependency-path: "**/requirements/*"
-      - name: Install tox
-        run: python -m pip install -U pip tox
-      - name: Check
-        run: tox -e flake8
+          cache: "poetry"
+          cache-dependency-path: "pyproject.toml"
+      - name: Install dependencies
+        run: |
+          poetry env use "3.9"
+          poetry install --no-interaction --no-root
+      - name: Run linters
+        run: poetry run invoke lint --diff
 
   docs:
     name: Build docs
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 4c0c85b0..f68521e5 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -13,13 +13,11 @@ repos:
       - id: end-of-file-fixer
       - id: forbid-new-submodules
       - id: trailing-whitespace
-  - repo: https://github.com/PyCQA/flake8
-    rev: 3.9.2
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.1.0
     hooks:
-      - id: flake8
-        name: Flake8 on commit diff
-        description: This hook limits Flake8 checks to changed lines of code.
-        entry: bash
-        args: [-c, 'git diff HEAD | flake8 --diff --max-line-length=88']
+      - id: ruff
+      - id: ruff-format
+        args: ["--check"]
 
 exclude: ^pelican/tests/output/
diff --git a/pelican/tools/pelican_themes.py b/pelican/tools/pelican_themes.py
index 47f1a625..1ad3a333 100755
--- a/pelican/tools/pelican_themes.py
+++ b/pelican/tools/pelican_themes.py
@@ -10,7 +10,7 @@ def err(msg, die=None):
     """Print an error message and exits if an exit code is given"""
     sys.stderr.write(msg + '\n')
     if die:
-        sys.exit(die if type(die) is int else 1)
+        sys.exit(die if isinstance(die, int) else 1)
 
 
 try:
@@ -135,16 +135,16 @@ def themes():
 
 def list_themes(v=False):
     """Display the list of the themes"""
-    for t, l in themes():
+    for theme_path, link_target in themes():
         if not v:
-            t = os.path.basename(t)
-        if l:
+            theme_path = os.path.basename(theme_path)
+        if link_target:
             if v:
-                print(t + (" (symbolic link to `" + l + "')"))
+                print(theme_path + (" (symbolic link to `" + link_target + "')"))
             else:
-                print(t + '@')
+                print(theme_path + '@')
         else:
-            print(t)
+            print(theme_path)
 
 
 def remove(theme_name, v=False):
diff --git a/pyproject.toml b/pyproject.toml
index 826c1179..b3eaa0d1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,6 +57,7 @@ pytest = "^7.1"
 pytest-cov = "^4.0"
 pytest-sugar = "^0.9.5"
 pytest-xdist = "^2.0"
+ruff = "^0.1.3"
 tox = {version = "^3.13", optional = true}
 flake8 = "^3.8"
 flake8-import-order = "^0.18.1"
diff --git a/tasks.py b/tasks.py
index e4268ec6..efdef8a4 100644
--- a/tasks.py
+++ b/tasks.py
@@ -66,13 +66,20 @@ def isort(c, check=False, diff=False):
 
 
 @task
-def flake8(c):
-    c.run(f"git diff HEAD | {VENV_BIN}/flake8 --diff --max-line-length=88", pty=PTY)
+def ruff(c, fix=False, diff=False):
+    """Run Ruff to ensure code meets project standards."""
+    diff_flag, fix_flag = "", ""
+    if fix:
+        fix_flag = "--fix"
+    if diff:
+        diff_flag = "--diff"
+    c.run(f"{VENV_BIN}/ruff check {diff_flag} {fix_flag} .", pty=PTY)
 
 
 @task
-def lint(c):
-    flake8(c)
+def lint(c, fix=False, diff=False):
+    """Check code style via linting tools."""
+    ruff(c, fix=fix, diff=diff)
 
 
 @task
diff --git a/tox.ini b/tox.ini
index c31044ca..361c52dd 100644
--- a/tox.ini
+++ b/tox.ini
@@ -30,17 +30,3 @@ filterwarnings =
     default::DeprecationWarning
     error:.*:Warning:pelican
 addopts = -n auto -r a
-
-[flake8]
-application-import-names = pelican
-import-order-style = cryptography
-max-line-length = 88
-
-[testenv:flake8]
-basepython = python3.9
-skip_install = true
-deps =
-    -rrequirements/style.pip
-commands =
-    flake8 --version
-    flake8 pelican