diff --git a/.travis.yml b/.travis.yml
index 646fa07..26ea2ec 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,4 +6,5 @@ matrix:
                 python: "2.7"
 
 script:
-        flake8 --ignore F405
+        - pip install --ignore-installed --upgrade flake8
+        - flake8 --ignore F405