diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 64b80d1..67cd051 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -27,16 +27,13 @@ jobs:
       uses: snok/install-poetry@v1
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip
-        pip install flake8 pytest
-        poetry install
-        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+        poetry install --with dev
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
-        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        flake8 mango --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+        flake8 mango --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
     - name: Test with pytest
       run: |
         pytest tests/
diff --git a/poetry.lock b/poetry.lock
index 7d5257e..3d4489c 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -624,6 +624,23 @@ files = [
 [package.extras]
 devel = ["colorama", "json-spec", "jsonschema", "pylint", "pytest", "pytest-benchmark", "pytest-cache", "validictory"]
 
+[[package]]
+name = "flake8"
+version = "7.1.1"
+description = "the modular source code checker: pep8 pyflakes and co"
+category = "dev"
+optional = false
+python-versions = ">=3.8.1"
+files = [
+    {file = "flake8-7.1.1-py2.py3-none-any.whl", hash = "sha256:597477df7860daa5aa0fdd84bf5208a043ab96b8e96ab708770ae0364dd03213"},
+    {file = "flake8-7.1.1.tar.gz", hash = "sha256:049d058491e228e03e67b390f311bbf88fce2dbaa8fa673e7aea87b7198b8d38"},
+]
+
+[package.dependencies]
+mccabe = ">=0.7.0,<0.8.0"
+pycodestyle = ">=2.12.0,<2.13.0"
+pyflakes = ">=3.2.0,<3.3.0"
+
 [[package]]
 name = "fqdn"
 version = "1.4.0"
@@ -1306,6 +1323,18 @@ files = [
 [package.dependencies]
 traitlets = "*"
 
+[[package]]
+name = "mccabe"
+version = "0.7.0"
+description = "McCabe checker, plugin for flake8"
+category = "dev"
+optional = false
+python-versions = ">=3.6"
+files = [
+    {file = "mccabe-0.7.0-py2.py3-none-any.whl", hash = "sha256:6c2d30ab6be0e4a46919781807b4f0d834ebdd6c6e3dca0bda5a15f863427b6e"},
+    {file = "mccabe-0.7.0.tar.gz", hash = "sha256:348e0240c33b60bbdf4e523192ef919f28cb2c3d7d5c7794f74009290f236325"},
+]
+
 [[package]]
 name = "mistune"
 version = "3.0.2"
@@ -1728,6 +1757,18 @@ files = [
 [package.extras]
 tests = ["pytest"]
 
+[[package]]
+name = "pycodestyle"
+version = "2.12.1"
+description = "Python style guide checker"
+category = "dev"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pycodestyle-2.12.1-py2.py3-none-any.whl", hash = "sha256:46f0fb92069a7c28ab7bb558f05bfc0110dac69a0cd23c61ea0040283a9d78b3"},
+    {file = "pycodestyle-2.12.1.tar.gz", hash = "sha256:6838eae08bbce4f6accd5d5572075c63626a15ee3e6f842df996bf62f6d73521"},
+]
+
 [[package]]
 name = "pycparser"
 version = "2.22"
@@ -1740,6 +1781,18 @@ files = [
     {file = "pycparser-2.22.tar.gz", hash = "sha256:491c8be9c040f5390f5bf44a5b07752bd07f56edf992381b05c701439eec10f6"},
 ]
 
+[[package]]
+name = "pyflakes"
+version = "3.2.0"
+description = "passive checker of Python programs"
+category = "dev"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pyflakes-3.2.0-py2.py3-none-any.whl", hash = "sha256:84b5be138a2dfbb40689ca07e2152deb896a65c3a3e24c251c5c62489568074a"},
+    {file = "pyflakes-3.2.0.tar.gz", hash = "sha256:1c61603ff154621fb2a9172037d84dca3500def8c8b630657d1701f026f8af3f"},
+]
+
 [[package]]
 name = "pygments"
 version = "2.18.0"
@@ -2691,4 +2744,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.10"
-content-hash = "e768b5265631ec75d305b67870dcfa4b53d57bf3a4a2709e5e5991fd8e171a35"
+content-hash = "ae9be6776aef1524dcba4dc6432525eebbc562836f1de2809269f8780f0ff893"
diff --git a/pyproject.toml b/pyproject.toml
index 420c2f5..536484e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,6 +26,7 @@ attrdict = ">=2.0.1"
 black = "^24.2.0"
 pytest = "^7.4.0"
 jupyter = "^1.0.0"
+flake8 = "^7.1.1"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]