diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index aa27210..67f9839 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -67,7 +67,7 @@ jobs:
       - name: Install project dependencies
         run: |
           uv lock
-          uv sync --all-extras
+          uv sync
 
       - name: Run mypy
         run: uv run mypy src/
diff --git a/.github/workflows/pr-checks.yml b/.github/workflows/pr-checks.yml
index b0a46f6..fd98e0e 100644
--- a/.github/workflows/pr-checks.yml
+++ b/.github/workflows/pr-checks.yml
@@ -84,7 +84,7 @@ jobs:
       - name: Install project dependencies
         run: |
           uv lock
-          uv sync --all-extras
+          uv sync
 
       - name: Run ruff linter
         run: uv run ruff check src/ tests/
@@ -115,7 +115,7 @@ jobs:
       - name: Install project dependencies
         run: |
           uv lock
-          uv sync --all-extras
+          uv sync
 
       - name: Run mypy
         run: uv run mypy src/
@@ -143,7 +143,7 @@ jobs:
       - name: Install project dependencies
         run: |
           uv lock
-          uv sync --all-extras
+          uv sync
 
       - name: Run tests with coverage
         run: |
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index cd5a6ad..9eb89bb 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -42,7 +42,7 @@ jobs:
 
       - name: Install project dependencies
         run: |
-          uv sync --all-extras
+          uv sync
 
       - name: Export dependencies for Snyk
         run: |
@@ -112,7 +112,7 @@ jobs:
       - name: Install project dependencies
         run: |
           uv lock
-          uv sync --all-extras
+          uv sync
 
       - name: Run Bandit security linter
         run: uv run bandit -r src/ -f json -o bandit-report.json
diff --git a/README.md b/README.md
index 6d379e4..f2df665 100644
--- a/README.md
+++ b/README.md
@@ -134,13 +134,13 @@ This ensures a consistent, repeatable setup across teams and projects.
 Install the project in editable mode with development dependencies:
 ```bash
 # with pip
-pip install -e ".[dev]"
+pip install -e . --group dev
 
 # with uv
-uv sync --extra dev
+uv sync
 
 # with poetry
-poetry install --extras dev
+poetry install
 ```
 
 > **Note:** *You may use any package manager you prefer (pip, uv, poetry).*
diff --git a/docs/CHECKLIST.md b/docs/CHECKLIST.md
index 3f3a0f3..0878b93 100644
--- a/docs/CHECKLIST.md
+++ b/docs/CHECKLIST.md
@@ -56,9 +56,9 @@ After cloning the new repository to your local development machine and creating
 install your project using the package manager of your choice:
 
 - [ ] **USER:** Install dependencies using **pip**, **uv**, or **poetry**:
-  - `pip install -e ".[dev]"`.
-  - `uv sync --extra dev`.
-  - `poetry install --extras dev`.
+  - `pip install -e . --group dev`.
+  - `uv sync`.
+  - `poetry install`.
 - [ ] **USER:** Run `prek install`.
 - [ ] **USER:** Run the application `python -m <package_name>.main`.
 
diff --git a/pyproject.toml b/pyproject.toml
index b5172e4..66b7668 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,19 +14,17 @@ classifiers = [
 ]
 
 dependencies = [
-    "pydantic-settings>=2.12.0",  # Managing environment variables
-    "structlog>=25.5.0"           # Managing logging
+    "pydantic-settings>=2.12.0",
+    "structlog>=25.5.0",
 ]
 
-[project.optional-dependencies]
+[dependency-groups]
+test = ["pytest>=9.0.0", "pytest-cov>=7.0.0"]
+quality = ["prek>=0.3.1", "bandit[toml]>=1.7.6", "ruff>=0.14.7", "mypy>=1.19.0"]
 dev = [
-    "pytest>=9.0.0",        # Testing framework
-    "pytest-cov>=7.0.0",    # Coverage plugin for pytest
-    "ruff>=0.14.7",         # Code formatter, Linter, Import sorter
-    "prek>=0.3.1",          # Pre-commit hooks
-    "mypy>=1.19.0",         # Type checker
-    "python-dotenv>=1.2.1", # Managing environment variables
-    "bandit[toml]>=1.7.6",  # Bandit security linter with toml support
+    {include-group = "test"},
+    {include-group = "quality"},
+    "python-dotenv>=1.2.1",
 ]
 
 [project.urls]
@@ -44,7 +42,7 @@ build-backend = "setuptools.build_meta"
 
 
 [tool.setuptools.packages.find]
-where = ["src"]  # Essential for the src-layout to find 'package_name'
+where = ["src"]
 
 [tool.pytest.ini_options]
 pythonpath = ["src"]