diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bb3e575..04007a9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -33,8 +33,8 @@ shfmt:
         - mkdir -p ${PIP_CACHE_DIR}
         - python -m venv .venv
         - source .venv/bin/activate
-        - pip install -r requirements.txt
-        - pip install -e .
+        - pip install --upgrade pip
+        - pip install -e .[dev]
     cache:
         - paths:
               - .cache/pip
@@ -49,10 +49,7 @@ build_sdist:
     extends: .base
     stage: build
     script:
-        - echo "to be implemented"
-        # TODO
-        # - python -m build
-        # - twine check dist/*
+        - hatch build
     artifacts:
         expire_in: 1 week
         paths:
@@ -65,6 +62,6 @@ publish_to_pypi:
     needs:
         - build_sdist
     script:
-        - python -m twine upload dist/* --non-interactive -u $PYPI_USERNAME -p $PYPI_PASSWORD
+        - hatch publish -u __token__ -a $PYPI_TOKEN
     rules:
         - if: $CI_COMMIT_TAG
diff --git a/pyproject.toml b/pyproject.toml
index 5dd07f3..2a0d8ef 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,16 +9,17 @@ readme = "README.md"
 license = ""
 
 dependencies = [
-    "cogment[generate]>=2.0.0,<3.0.0",
-    "grpcio>=1.44",
-    "PyYAML~=6.0.1",
+    "cogment[generate]>=2.10.1,<3.0.0",
+    "grpcio>=1.48",
+    "grpcio-tools>=1.48",
+    "PyYAML>=5.0",
     "starlette>=0.21.0",
     "uvicorn>=0.17.6",
     "Gymnasium[classic_control]~=0.29",
     "PettingZoo~=1.23.1",
     "numpy",
     "opencv-python>=4.8",
-    "fastapi>=0.105",
+    "fastapi>=0.103",
     "pillow>=9.0",
 ]
 
@@ -41,21 +42,20 @@ all = [
     "pytest-asyncio",
     "coltra>=0.2.1",
     "torch",
-    "Grid2Op==1.9.6",
-    "lightsim2grid",
-    "numba==0.56.4",
     "matplotlib",
     "wandb>=0.13.9",
+    "hatch>=1.9.1",
+    "ruff>=0.1.7",
+    "jupyter>=1.0.0",
+    "jupyterlab>=3.5.3",
 ]
 dev = [
-    "pytest >=7.1.3",
+    "pytest>=7.1.3",
     "pytest-asyncio",
     "ruff>=0.1.7",
-    "jupyter>=1.0.0",
-    "jupyterlab>=3.5.3",
+    "hatch>=1.7.0"
 ]
 coltra = ["coltra>=0.2.1", "torch", "wandb>=0.13.9"]
-grid2op = ["Grid2Op==1.9.6", "lightsim2grid", "numba==0.56.4"]
 
 [project.urls]
 Homepage = "https://cogment.ai/lab"