diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a913cf55..889089a8 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -54,5 +54,5 @@ jobs:
       - name: Install tox
         run: pip install tox
       - name: Run tests
-        run: tox -e ${{ matrix.python }}
+        run: tox -e py$(sed -e 's/\.//' <<< ${{ matrix.python }})
         timeout-minutes: 5
diff --git a/tox.ini b/tox.ini
index 8bb56694..13688bdf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = {3.6,3.7,3.8,3.9,3.10}
+envlist = py{36,37,38,39,310}
 
 [testenv]
 commands = make check