diff --git a/tox.ini b/tox.ini
index ab93ef5..ff5e1db 100644
--- a/tox.ini
+++ b/tox.ini
@@ -121,7 +121,7 @@ deps =
 
 
 [testenv:flake8]
-basepython=python
+basepython=python3
 deps=flake8
 skip_install=True
 commands=
@@ -130,7 +130,7 @@ commands=
 whitelist_externals={[post_cmd]whitelist_externals}
 
 [testenv:check_rst]
-basepython=python
+basepython=python3
 deps=
     docutils
     Pygments
@@ -142,7 +142,7 @@ commands=
 whitelist_externals={[post_cmd]whitelist_externals}
 
 [testenv:coverage]
-basepython=python
+basepython=python3
 passenv=
     COVERAGE_TOKEN
     CI_BUILD_REF_NAME