diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e01e74ef..e86e0d4b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -17,7 +17,6 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macOS-latest]
-        python_version: [3.9]
     steps:
     - uses: actions/checkout@v3
       with:
@@ -25,7 +24,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
-        python-version: ${{ matrix.python_version }}
+        python-version-file: pyproject.toml
     - name: Install dependencies
       shell: bash
       run: |
@@ -58,7 +57,6 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        python_version: [3.9]
     steps:
     - uses: actions/checkout@v3
       with:
@@ -66,7 +64,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v4
       with:
-        python-version: ${{ matrix.python_version }}
+        python-version-file: pyproject.toml
     - name: Install dependencies
       shell: bash
       run: |
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index f9ba1422..95c97fda 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -12,6 +12,8 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
+        with:
+          python-version-file: pyproject.toml
       - uses: jpetrucciani/ruff-check@main
 
   format:
@@ -19,4 +21,6 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-python@v4
+        with:
+          python-version-file: pyproject.toml
       - uses: psf/black@stable