diff --git a/.github/workflows/publish-to-pypi.yml b/.github/workflows/publish-to-pypi.yml
index 6b4e39f..23c9b5c 100644
--- a/.github/workflows/publish-to-pypi.yml
+++ b/.github/workflows/publish-to-pypi.yml
@@ -2,7 +2,7 @@ name: Publish Python 🐍 distribution 📦 to PyPI
 
 on:
   push:
-    branches: [master, build/*]
+    branches: [main, build/*]
 
 jobs:
   build:
@@ -20,7 +20,7 @@ jobs:
       run: |
         sed -i "/__version__/d" twinn_ml_interface/_version.py
         sed -i "s/__dev_version__/__version__/g" twinn_ml_interface/_version.py
-      if: github.ref != 'refs/heads/master'
+      if: github.ref != 'refs/heads/main'
 
     - name: Install pypa/build
       run: >-
diff --git a/.github/workflows/publish-to-test-pypi.yml b/.github/workflows/publish-to-test-pypi.yml
index dc7e143..4f4ad4e 100644
--- a/.github/workflows/publish-to-test-pypi.yml
+++ b/.github/workflows/publish-to-test-pypi.yml
@@ -2,7 +2,7 @@ name: Publish Python 🐍 distribution 📦 to TestPyPI
 
 on:
   push:
-    branches: [master, build/*]
+    branches: [main, build/*]
 
 jobs:
   build:
@@ -20,7 +20,7 @@ jobs:
       run: |
         sed -i "/__version__/d" twinn_ml_interface/_version.py
         sed -i "s/__dev_version__/__version__/g" twinn_ml_interface/_version.py
-      if: github.ref != 'refs/heads/master'
+      if: github.ref != 'refs/heads/main'
 
     - name: Install pypa/build
       run: >-
diff --git a/.github/workflows/validate_pipeline.yml b/.github/workflows/validate_pipeline.yml
index 14c1992..84801ba 100644
--- a/.github/workflows/validate_pipeline.yml
+++ b/.github/workflows/validate_pipeline.yml
@@ -32,26 +32,10 @@ jobs:
     - name: 'Run all pre-commit linters'
       run: |
         pre-commit run --all-files --show-diff-on-failure
-
-  # testing: # TODO: Activate when Custom Protocol is public
-
-  #   runs-on: ubuntu-latest
-  #   strategy:
-  #     fail-fast: false
-  #     matrix:
-  #       python-version: ["3.10"]
-
-  #   steps:
-  #   - uses: actions/checkout@v3
-  #   - name: Set up Python ${{ matrix.python-version }}
-  #     uses: actions/setup-python@v3
-  #     with:
-  #       python-version: ${{ matrix.python-version }}
-  #   - name: Install pre-commit
-  #     run: |
-  #       python -m pip install --upgrade pip
-  #       python -m pip install pytest
-  #       pip install .
-  #   - name: Test with pytest
-  #     run: |
-  #       pytest tests/
\ No newline at end of file
+    - name: Prepare for testing
+      run: |
+        python -m pip install pytest
+        pip install .
+    - name: Test with pytest
+      run: |
+        pytest tests/
\ No newline at end of file