diff --git a/.github/workflows/builders.yaml b/.github/workflows/builders.yaml
index 4e64167..dedef4f 100644
--- a/.github/workflows/builders.yaml
+++ b/.github/workflows/builders.yaml
@@ -2,10 +2,6 @@ name: Builders
 on:
   workflow_call:
   workflow_dispatch:
-  pull_request_target:
-    branches:
-      - master
-      - main
 jobs:
   build:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/pylint.yaml b/.github/workflows/pylint.yaml
index 267f7eb..e37837e 100644
--- a/.github/workflows/pylint.yaml
+++ b/.github/workflows/pylint.yaml
@@ -2,10 +2,6 @@ name: Pylint
 on:
   workflow_call:
   workflow_dispatch:
-  pull_request_target:
-    branches:
-      - master
-      - main
 jobs:
   lint:
     runs-on: ubuntu-latest
@@ -13,7 +9,12 @@ jobs:
       matrix:
         python-version: ["3.11"]
     steps:
-    - uses: actions/checkout@v3
+    - name: Check out code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 1
+        ref: ${{ github.event.pull_request.head.sha }}
+        persist-credentials: false
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v3
@@ -23,7 +24,6 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install pylint
         pip install -r requirements.txt
 
     - name: Analysing the code with pylint
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 15f31f5..87597d5 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -20,7 +20,7 @@ jobs:
         file-install: false
 
     - name: Check out code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 1
         ref: ${{ github.event.pull_request.head.sha }}
@@ -34,7 +34,6 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install pylint
         pip install -r requirements.txt
         pip install .
 
diff --git a/orion.py b/orion.py
index d9a21b9..3690213 100644
--- a/orion.py
+++ b/orion.py
@@ -124,7 +124,7 @@ def cmd_analysis(**kwargs):
     logger_instance = SingletonLogger(debug=level, name="Orion")
     logger_instance.info("🏹 Starting Orion in command-line mode")
     if len(kwargs["ack"]) > 1 :
-       kwargs["ackMap"] = load_ack(kwargs["ack"])
+        kwargs["ackMap"] = load_ack(kwargs["ack"])
     kwargs["configMap"] = load_config(kwargs["config"])
     output, regression_flag = run(**kwargs)
     if output is None:
diff --git a/pkg/config.py b/pkg/config.py
index de8a17d..69c4791 100644
--- a/pkg/config.py
+++ b/pkg/config.py
@@ -55,6 +55,7 @@ def load_config(config: str, parameters: Dict= None) -> Dict[str, Any]:
     return rendered_config
 
 def load_ack(ack: str) -> Dict[str,Any]:
+    "Loads acknowledgment file content."
     logger_instance = SingletonLogger.getLogger("Orion")
     try:
         with open(ack, "r", encoding="utf-8") as template_file:
@@ -67,8 +68,6 @@ def load_ack(ack: str) -> Dict[str,Any]:
         logger_instance.error("An error occurred: %s", e)
         sys.exit(1)
 
-    required_parameters = get_template_variables(template_content)
-
     rendered_config = yaml.safe_load(template_content)
     return rendered_config
 
diff --git a/requirements.txt b/requirements.txt
index c36cce9..4e3031d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,3 +18,4 @@ python-multipart==0.0.9
 scikit-learn==1.5.0
 scipy==1.12.0
 uvicorn==0.28.0
+pylint==3.3.2