diff --git a/tox.ini b/tox.ini
index 57d1f78e..a519cb1e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,7 +14,7 @@ commands =
     py{36,37}: py.test --cov=graphene graphene examples tests_asyncio tests_py36 {posargs}
 
 [testenv:pre-commit]
-basepython=python3.6
+basepython=python3.7
 deps =
     pre-commit>0.12.0
 setenv =
@@ -23,7 +23,7 @@ commands =
     pre-commit {posargs:run --all-files}
 
 [testenv:mypy]
-basepython=python3.6
+basepython=python3.7
 deps =
     mypy
 commands =