diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 6e3c608..e08995b 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -40,6 +40,11 @@ jobs:
       - name: Checkout repository
         uses: actions/checkout@v3
 
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version-file: pyproject.toml
+
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 4ab7a5a..c74131a 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -10,9 +10,6 @@ on:
   schedule:
     - cron: "0 0 * * *"
 
-env:
-  DEFAULT_PYTHON: "3.11"
-
 jobs:
   pre-commit:
     runs-on: "ubuntu-latest"
@@ -24,10 +21,10 @@ jobs:
       - name: Install poetry
         run: pipx install poetry
 
-      - name: Set up Python ${{ env.DEFAULT_PYTHON }}
+      - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: ${{ env.DEFAULT_PYTHON }}
+          python-version-file: pyproject.toml
           cache: "poetry"
 
       - name: Install Python modules
@@ -65,10 +62,10 @@ jobs:
   #   steps:
   #     - name: Check out code from GitHub
   #       uses: "actions/checkout@v3"
-  #     - name: Setup Python ${{ env.DEFAULT_PYTHON }}
+  #     - name: Setup Python
   #       uses: "actions/setup-python@v5"
   #       with:
-  #         python-version: ${{ env.DEFAULT_PYTHON }}
+  #         python-version-file: pyproject.toml
   #     - name: Install requirements
   #       run: |
   #         pip install --constraint=.github/workflows/constraints.txt pip