diff --git a/tox.ini b/tox.ini
index eb678369f..154cd7655 100644
--- a/tox.ini
+++ b/tox.ini
@@ -40,12 +40,12 @@ passenv =
 deps =
     {test,cov}: {[_test]deps}
     py27: pathlib
-    py{27,34,35,36}-flake8: {[_flake8]deps}
+    py{27,34,35,36,37}-flake8: {[_flake8]deps}
 commands =
     py27-cov: python -m nose --with-coverage {posargs}
     py27-test: python -m nose {posargs}
-    py{34,35}-cov: python -bb -m nose --with-coverage {posargs}
-    py{34,35,36}-test: python -bb -m nose {posargs}
+    py3{4,5,6,7}-cov: python -bb -m nose --with-coverage {posargs}
+    py3{4,5,6,7}-test: python -bb -m nose {posargs}
     py27-flake8: flake8 --min-version 2.7 {posargs} {[_flake8]files}
     py34-flake8: flake8 --min-version 3.4 {posargs} {[_flake8]files}
     py35-flake8: flake8 --min-version 3.5 {posargs} {[_flake8]files}