diff --git a/.github/workflows/pythonapp.yml b/.github/workflows/pythonapp.yml
index 701a8f7..c42dc13 100644
--- a/.github/workflows/pythonapp.yml
+++ b/.github/workflows/pythonapp.yml
@@ -9,25 +9,20 @@ on: [push, pull_request]
 jobs:
   build:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: [3.10]
     timeout-minutes: 5
 
     steps:
-      - uses: actions/checkout@v2
-
-      - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+      - uses: actions/checkout@v5
+      - uses: actions/setup-python@v4
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: '3.11'
 
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
           pip install flake8 matplotlib pytest requests
 
-      - name: Lint with flake8
+      - name: Lint with flake8 (non-blocking)
         run: flake8 --exit-zero --statistics *.py
 
       - name: Run unit tests using pytest