diff --git a/.github/workflows/test_development_versions.yml b/.github/workflows/test_development_versions.yml
index 8c9e6f2..53eafd0 100644
--- a/.github/workflows/test_development_versions.yml
+++ b/.github/workflows/test_development_versions.yml
@@ -19,7 +19,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.10]
+        python-version: '3.10'
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
diff --git a/.github/workflows/test_minimum_versions.yml b/.github/workflows/test_minimum_versions.yml
index 5255ed2..57dca58 100644
--- a/.github/workflows/test_minimum_versions.yml
+++ b/.github/workflows/test_minimum_versions.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.12]
+        python-version: '3.12'
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}