diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 79d2f6b..1202450 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.10']
+        python-version: ['3.8', '3.12']  # oldest and youngest Pythons alive
     steps:
     - uses: actions/checkout@v4
       with:
diff --git a/.github/workflows/testOnly.yml b/.github/workflows/testOnly.yml
index 477a56a..138796d 100644
--- a/.github/workflows/testOnly.yml
+++ b/.github/workflows/testOnly.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.10']
+        python-version: ['3.8', '3.12']  # oldest and youngest Pythons alive
     steps:
       - uses: actions/checkout@v4
         with: