diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index be6fc6d5..6dba41d8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -11,6 +11,7 @@ on:
 env:
   FORCE_COLOR: "1"  # Make tools pretty.
   TOX_TESTENV_PASSENV: "FORCE_COLOR"
+  PYTHON_LATEST: "3.10"
 
 
 jobs:
@@ -55,7 +56,7 @@ jobs:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
         with:
-          python-version: "3.10"  # Use latest, so it understands all syntax.
+          python-version: ${{env.PYTHON_LATEST}}  # Use latest, so it understands all syntax.
 
       - run: "python -m pip install --upgrade coverage[toml]"
 
@@ -84,7 +85,7 @@ jobs:
       - uses: "actions/checkout@v2"
       - uses: "actions/setup-python@v2"
         with:
-          python-version: "3.10"
+          python-version: ${{env.PYTHON_LATEST}}
 
       - name: "Install build and lint tools"
         run: "python -m pip install build twine check-wheel-contents"
@@ -106,7 +107,7 @@ jobs:
       - uses: "actions/checkout@v2"
       - uses: "actions/setup-python@v2"
         with:
-          python-version: "3.10"
+          python-version: ${{env.PYTHON_LATEST}}
       - name: "Install in dev mode"
         run: "python -m pip install -e .[dev]"
       - name: "Import package"