diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index af0127c..ff12a76 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [ "3.9", "3.11", "3.12"]
+        python-version: [ 3.9 ]
 
     steps:
     - uses: actions/checkout@v4
@@ -25,7 +25,6 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip
         pip install flake8 pytest
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Lint with flake8