diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f171c0b..d156eb4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,6 +7,13 @@ on:
   pull_request:
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -15,7 +22,7 @@ jobs:
         python-version: ['3.8', '3.9', '3.10', '3.11']
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
@@ -23,9 +30,10 @@ jobs:
 
     - name: Install poetry
       run: |
-        pip install -U pip
-        curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/install-poetry.py | python -
-        echo "${HOME}/.poetry/bin" >> $GITHUB_PATH
+        curl -sSL "https://install.python-poetry.org" | python
+
+        # Adding `poetry` to `$PATH`:
+        echo "$HOME/.poetry/bin" >> $GITHUB_PATH
 
     - name: Install dependencies
       run: |
@@ -40,10 +48,9 @@ jobs:
         poetry run pytest
         poetry check
         poetry run pip check
-        poetry run safety check --full-report
 
     - name: Upload coverage to Codecov
-      if: matrix.python-version == 3.8
+      if: matrix.python-version == 3.11
       uses: codecov/codecov-action@v3
       with:
         file: ./coverage.xml