diff --git a/.github/workflows/black_linter.yml b/.github/workflows/black_linter.yml
index 58a9870f..e890c8ba 100644
--- a/.github/workflows/black_linter.yml
+++ b/.github/workflows/black_linter.yml
@@ -23,8 +23,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install black==19.3b pytest
-        pip install click==8.0.2
+        pip install -r app/requirements/testing.txt
         pip install -r app/requirements/postgres.txt
     - name: Analysing the code with pylint
       run: |
diff --git a/app/dev_requirements.txt b/app/dev_requirements.txt
deleted file mode 100644
index 0fdff81b..00000000
--- a/app/dev_requirements.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-black==19.3b0
-click==8.0.3
-libsass
-django-compressor
-django-sass-processor
\ No newline at end of file
diff --git a/app/projects/tests.py b/app/projects/tests.py
index 4f980a14..c7518ef2 100644
--- a/app/projects/tests.py
+++ b/app/projects/tests.py
@@ -1,17 +1,15 @@
-import pytest
 import json
+
+import pytest
 from django.test import TestCase
-from django.urls import reverse
-from django.conf import settings as django_settings
 from django.test.client import RequestFactory
-from projects.models import Project, Scenario, Viewer, Asset
-from users.models import CustomUser
-from django.core.exceptions import ValidationError
-
+from django.urls import reverse
+from projects.models import Project, Scenario, Asset
 from projects.scenario_topology_helpers import (
     load_scenario_from_dict,
     load_project_from_dict,
 )
+from users.models import CustomUser
 
 
 class BasicOperationsTest(TestCase):
diff --git a/app/requirements/postgres.txt b/app/requirements/base.txt
similarity index 72%
rename from app/requirements/postgres.txt
rename to app/requirements/base.txt
index b44ac407..842b33ec 100644
--- a/app/requirements/postgres.txt
+++ b/app/requirements/base.txt
@@ -2,16 +2,18 @@ django-extensions==3.0.9
 Django==3.2.15
 django-bootstrap-modal-forms==2.0.0
 django-crispy-forms==1.9.2
+django-compressor==4.1
 django-jsonview==2.0.0
 django-q==1.3.4
+django-sass-processor==1.2.2
 gunicorn==20.0.4
+libsass==0.21.0
 numpy>=1.22.4
-openpyxl
+openpyxl==3.0.10
 httpx==0.18.1
-psycopg2-binary==2.9.3
 XlsxWriter==1.3.9
 requests==2.24.0
 exchangelib==4.4.0
 jsonschema==4.4.0
 plotly==5.6.0
-oemof-thermal==0.0.5
\ No newline at end of file
+oemof-thermal==0.0.5
diff --git a/app/requirements/local.txt b/app/requirements/local.txt
new file mode 100644
index 00000000..0f5c7b4d
--- /dev/null
+++ b/app/requirements/local.txt
@@ -0,0 +1,7 @@
+-r ./base.txt
+
+psycopg2-binary==2.9.3
+
+black==19.3b
+click==8.0.3
+pytest==7.2.0
diff --git a/app/requirements/mysql.txt b/app/requirements/mysql.txt
deleted file mode 100644
index 6193d755..00000000
Binary files a/app/requirements/mysql.txt and /dev/null differ
diff --git a/app/requirements/production.txt b/app/requirements/production.txt
new file mode 100644
index 00000000..fb56a8de
--- /dev/null
+++ b/app/requirements/production.txt
@@ -0,0 +1,3 @@
+-r ./base.txt
+
+psycopg2-binary==2.9.3
diff --git a/app/requirements/production_mysql.txt b/app/requirements/production_mysql.txt
new file mode 100644
index 00000000..8befeca5
Binary files /dev/null and b/app/requirements/production_mysql.txt differ