diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
new file mode 100644
index 0000000..dbaedd4
--- /dev/null
+++ b/.github/workflows/python-publish.yml
@@ -0,0 +1,39 @@
+# This workflow will upload a Python Package using Twine when a release is created
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python#publishing-to-package-registries
+
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+
+name: Upload Python Package
+
+on:
+  release:
+    types: [published]
+
+permissions:
+  contents: read
+
+jobs:
+  deploy:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up Python
+      uses: actions/setup-python@v3
+      with:
+        python-version: '3.x'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install build
+    - name: Build package
+      run: python -m build
+    - name: Publish package
+      uses: pypa/gh-action-pypi-publish@27b31702a0e7fc50959f5ad993c78deac1bdfc29
+      with:
+        user: __token__
+        password: ${{ secrets.PYPI_API_TOKEN }}
\ No newline at end of file
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index bafdb32..8f11a02 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -23,13 +23,20 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
-      run:  pip install tox
+      run: |
+        python -m pip install --upgrade pip
+        pip install pytest pytest-cov pytest-randomly hypothesis-pytest
+        pip install -r requirements.txt
     - name: Unit tests and coverage
       run: |
-        pyver=`echo ${{ matrix.python-version }} | tr -d "."`
-        tox -e py${{ matrix.python-version }}
-      env:
-        OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+        pytest -k "not gpt" \
+        --doctest-modules \
+        nl2ltl tests \
+        --cov=nl2ltl \
+        --cov-report=xml \
+        --cov-report=html \
+        --cov-report=term \
+        --hypothesis-show-statistics
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v3
       with:
diff --git a/.github/workflows/test_gpt.yml b/.github/workflows/test_gpt.yml
new file mode 100644
index 0000000..f7af973
--- /dev/null
+++ b/.github/workflows/test_gpt.yml
@@ -0,0 +1,44 @@
+name: test GPT
+
+on: workflow_dispatch
+
+jobs:
+  run:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        python-version: ["3.8"]
+
+    timeout-minutes: 30
+
+    steps:
+    - uses: actions/checkout@main
+    - uses: actions/setup-python@main
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install pytest pytest-cov pytest-randomly hypothesis-pytest
+        pip install -r requirements.txt
+    - name: Unit tests and coverage
+      run: |
+        pytest test_gpt.py \
+        --doctest-modules \
+        nl2ltl tests \
+        --cov=nl2ltl \
+        --cov-report=xml \
+        --cov-report=html \
+        --cov-report=term \
+        --hypothesis-show-statistics
+      env:
+        OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v3
+      with:
+        file: ./coverage.xml
+        flags: unittests
+        name: codecov-umbrella
+        fail_ci_if_error: true
diff --git a/README.md b/README.md
index 7d10156..c1de86d 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@
 [![Python](https://img.shields.io/pypi/pyversions/nl2ltl)](https://img.shields.io/pypi/pyversions/nl2ltl)
 [![PyPI](https://img.shields.io/pypi/v/nl2ltl)](https://img.shields.io/pypi/v/nl2ltl)
 [![Test](https://github.com/IBM/nl2ltl/actions/workflows/test.yml/badge.svg)](https://github.com/IBM/nl2ltl/actions/workflows/test.yml/badge.svg)
+[![TestGPT](https://github.com/IBM/nl2ltl/actions/workflows/test_gpt.yml/badge.svg)](https://github.com/IBM/nl2ltl/actions/workflows/test_gpt.yml/badge.svg)
 [![Lint](https://github.com/IBM/nl2ltl/actions/workflows/linting.yml/badge.svg)](https://github.com/IBM/nl2ltl/actions/workflows/linting.yml/badge.svg)
 [![Docs](https://github.com/IBM/nl2ltl/actions/workflows/docs.yml/badge.svg)](https://github.com/IBM/nl2ltl/actions/workflows/docs.yml/badge.svg)
 [![codecov](https://codecov.io/github/IBM/nl2ltl/branch/main/graph/badge.svg?token=XdAtl04qo6)](https://codecov.io/github.com/IBM/nl2ltl)
diff --git a/nl2ltl/__init__.py b/nl2ltl/__init__.py
index 28eeffe..257c5a7 100644
--- a/nl2ltl/__init__.py
+++ b/nl2ltl/__init__.py
@@ -2,6 +2,6 @@
 
 """From Natural Language to Linear-time Temporal Logic on Finite Traces."""
 
-__version__ = "0.0.2"
+__version__ = "0.0.3"
 
 from .core import translate  # noqa: F401