diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 26f8a3f20..90ea27050 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,6 +8,21 @@ env:
   PYTEST_ADDOPTS: --color=yes
 
 jobs:
+  pyflakes:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3.8
+
+      - name: pyflakes
+        run: |
+          pip install pyflakes
+          pyflakes magicctapipe
+
   tests:
     runs-on: ubuntu-latest
     strategy:
@@ -16,12 +31,12 @@ jobs:
         ctapipe-version: [v0.12.0]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
 
@@ -43,14 +58,6 @@ jobs:
           pip install -e .
           git describe --tags
 
-      - name: Static codechecks
-        # need to use a login shell for the conda setup to work
-        shell: bash -leo pipefail {0}
-        run: |
-          source $CONDA/etc/profile.d/conda.sh
-          conda activate ci
-          pyflakes magicctapipe
-
       #- name: Download test data
       #  env:
       #    TEST_DATA_USER: ${{ secrets.test_data_user }}
@@ -71,4 +78,4 @@ jobs:
           coverage run -m pytest -v
           coverage xml
 
-      - uses: codecov/codecov-action@v1
+      - uses: codecov/codecov-action@v3
diff --git a/environment.yml b/environment.yml
index d69b0a691..fd30be377 100644
--- a/environment.yml
+++ b/environment.yml
@@ -8,6 +8,7 @@ dependencies:
   - pip
   - black
   - nbsphinx
+  - numpy=1.21
   - ctapipe=0.12
   - gammapy=0.19.0
   - cython
diff --git a/setup.cfg b/setup.cfg
index c847633c7..e2b2619a5 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = magic-cta-pipe
-description = 
+description = pipeline for the analysis of joint MAGIC+LST-1 data
 long_description = file: README.md
 long_description_content_type = text/markdown
 author = magic-cta-pipe developers
@@ -8,6 +8,38 @@ author_email = alessioberti90@gmail.com
 license = BSD 3-Clause License
 url = https://github.com/cta-observatory/magic-cta-pipe
 
+project_urls =
+    Bug Tracker = https://github.com/cta-observatory/magic-cta-pipe/issues
+    Source Code = https://github.com/cta-observatory/magic-cta-pipe
+
+classifiers =
+    Development Status :: 4 - Beta
+    License :: OSI Approved :: BSD License
+    Intended Audience :: Science/Research
+    Topic :: Scientific/Engineering :: Astronomy
+    Topic :: Scientific/Engineering :: Physics
+    Programming Language :: Python :: 3 :: Only
+    Programming Language :: Python :: 3.8
+
+[options]
+packages = find:
+python_requires = >=3.8
+zip_safe = False
+install_requires=
+    lstchain~=0.9.6
+    ctapipe~=0.12.0
+    ctapipe_io_magic~=0.4.7
+    ctaplot~=0.5.5
+    gammapy~=0.19.0
+    uproot~=4.1
+    numpy<1.22.0a0
+    joblib
+    pandas
+    pyirf~=0.6.0
+    seaborn
+    scikit-learn
+    setuptools_scm
+
 [flake8]
 exclude = build,docs,.eggs
 max-line-length = 88
diff --git a/setup.py b/setup.py
index 84a35ed41..f8c4a145e 100644
--- a/setup.py
+++ b/setup.py
@@ -39,6 +39,7 @@
         'ctaplot~=0.5.5',
         'gammapy~=0.19.0',
         'uproot~=4.1',
+        'numpy<1.22.0a0',
         'joblib',
         'pandas',
         'pyirf~=0.6.0',