diff --git a/.flake8 b/.flake8
deleted file mode 100644
index 2a6fa7d..0000000
--- a/.flake8
+++ /dev/null
@@ -1,10 +0,0 @@
-[flake8]
-max-line-length = 79
-application_import_names = promo_code, user, core, business
-import-order-style = google
-exclude = */migrations/, venv/, verdict.py, .venv/,  env/, venv, .git, __pycache__
-max-complexity = 10
-max-expression-complexity = 7
-
-[flake8-quotes]
-quote-style = single
\ No newline at end of file
diff --git a/.github/workflows/linting.yml b/.github/workflows/linting.yml
index d5221cb..56bbcb2 100644
--- a/.github/workflows/linting.yml
+++ b/.github/workflows/linting.yml
@@ -11,30 +11,17 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.12"]
+        python-version: ["3.13"]
     steps:
-      - uses: actions/checkout@v2
+      - name: Checkout repository
+        uses: actions/checkout@v3
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
 
-      - name: Cache pip
-        uses: actions/cache@v3
+      - name: Run Ruff via Action
+        uses: astral-sh/ruff-action@v3.2.2
         with:
-          path: ~/.cache/pip
-          key: ${{ runner.os }}-pip-${{ hashFiles('requirements/dev.txt') }}
-          restore-keys: |
-            ${{ runner.os }}-pip-
-
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install -r requirements/dev.txt
-
-      - name: Run linters
-        run: |
-          black . --check --verbose
-          isort . --check --verbose
-          flake8 . --count --show-source --statistics
+          github-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.isort.cfg b/.isort.cfg
deleted file mode 100644
index 0f5f77b..0000000
--- a/.isort.cfg
+++ /dev/null
@@ -1,7 +0,0 @@
-[settings]
-profile = black
-skip = migrations, venv/, venv
-known_first_party = promo_code, user, core, business
-default_section = THIRDPARTY
-force_sort_within_sections = true
-line_length = 79
\ No newline at end of file
diff --git a/promo_code/user/validators.py b/promo_code/user/validators.py
index bc0a0eb..2a62b5e 100644
--- a/promo_code/user/validators.py
+++ b/promo_code/user/validators.py
@@ -82,7 +82,7 @@ def __call__(self, value):
 
         if missing_fields:
             raise rest_framework.serializers.ValidationError(
-                {field: 'This field is required.' for field in missing_fields},
+                dict.fromkeys(missing_fields, 'This field is required.'),
             )
 
         serializer = self.__class__(data=value)
diff --git a/pyproject.toml b/pyproject.toml
deleted file mode 100644
index f86b994..0000000
--- a/pyproject.toml
+++ /dev/null
@@ -1,5 +0,0 @@
-[tool.black]
-line-length = 79
-skip-string-normalization = true
-target-version = ['py313']
-exclude = ".venv"
\ No newline at end of file
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 8be14f0..a5331ab 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -1,7 +1,4 @@
 -r prod.txt
 -r test.txt
-black==24.8.0
-flake8==7.1.1
-isort==5.13.2
 ruff==0.11.5
-sort-requirements==1.3.0
\ No newline at end of file
+sort-requirements==1.3.0
diff --git a/requirements/flake8-plugins.txt b/requirements/flake8-plugins.txt
deleted file mode 100644
index 5f4d517..0000000
--- a/requirements/flake8-plugins.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-flake8-absolute-import==1.0.0.2
-flake8-bugbear==24.8.19
-flake8-clean-block==0.1.2
-flake8-commas==4.0.0
-flake8-eradicate==1.5.0
-flake8-expression-complexity==0.0.11
-flake8-implicit-str-concat==0.5.0
-flake8-print==5.0.0
-flake8-quotes==3.4.0
-flake8-return==1.2.0
-flake8-use-pathlib==0.3.0
-pep8-naming==0.14.1
\ No newline at end of file
diff --git a/requirements/test.txt b/requirements/test.txt
index 49553db..62a33be 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -1,3 +1,2 @@
--r flake8-plugins.txt
 django-debug-toolbar==4.4.6
 parameterized==0.9.0