diff --git a/.travis.yml b/.travis.yml
index deec6e1..2aa9e58 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,17 +2,13 @@ language: python
 
 matrix:
     include:
-      - python: 3.3
-        env: TOX_ENV=py33
-      - python: 3.4
-        env: TOX_ENV=py34
       - python: 3.5
         env: TOX_ENV=py35
       - python: 3.6
         env: TOX_ENV=py36
-      - python: 3.5
+      - python: 3.6
         env: TOX_ENV=flake8
-      - python: 3.5
+      - python: 3.6
         env: TOX_ENV=coverage
 
 install:
@@ -33,4 +29,4 @@ deploy:
   on:
     tags: true
     repo: mstuttgart/pysigep
-    condition: ${TOX_ENV} == py35
+    condition: ${TOX_ENV} == py36
diff --git a/tox.ini b/tox.ini
index 84e0a97..ae0cd6d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py33, py34, py35, py36, flake8, coverage
+envlist = py35, py36, flake8, coverage
 
 [testenv:coverage]
 passenv = TRAVIS TRAVIS_JOB_ID TRAVIS_BRANCH
@@ -12,7 +12,7 @@ commands =
 [testenv:flake8]
 basepython=python
 deps=flake8
-commands=flake8 --ignore=F401 pysigep
+commands=flake8 --ignore=F401,F501 pysigep
 
 [testenv]
 setenv =