diff --git a/.travis.yml b/.travis.yml
index 80844b7..fca6b3f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,17 +15,17 @@ matrix:
     os: linux
     dist: xenial
   - python: 3.5.0
-    env: TOXENV=3.5 IDENT="3.5.0" RUN_SUITE=y USE_PYENV=y
+    env: TOXENV=py35 IDENT="3.5.0" RUN_SUITE=y USE_PYENV=y
     os: linux
   - python: 3.6.0
-    env: TOXENV=3.6 IDENT="3.6.0" RUN_SUITE=y USE_PYENV=y
+    env: TOXENV=py36 IDENT="3.6.0" RUN_SUITE=y USE_PYENV=y
     os: linux
   - python: 3.7.0
-    env: TOXENV=3.7 IDENT="3.7.0" RUN_SUITE=y USE_PYENV=n
+    env: TOXENV=py37 IDENT="3.7.0" RUN_SUITE=y USE_PYENV=n
     os: linux
     dist: xenial
   - python: 3.7.1
-    env: TOXENV=3.7 IDENT="3.7.1" RUN_SUITE=y USE_PYENV=n
+    env: TOXENV=py37 IDENT="3.7.1" RUN_SUITE=y USE_PYENV=n
     os: linux
     dist: xenial
 before_install: