diff --git a/.travis.yml b/.travis.yml
index 0d7b95c..577f881 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -30,6 +30,11 @@ jobs:
           script:
               - vendor/bin/phpcs -p
 
+stages:
+    - Test
+    - name: Code Quality
+      if: type = pull_request
+
 allow_failures:
     - php: nightly
 
@@ -37,6 +42,8 @@ cache:
     directories:
         - $HOME/.composer/cache/files
 
-branches:
-    only:
-        - master
+if: |
+    branch = master OR \
+    branch =~ /^(?:[0-9]|[1-9][0-9]*)\.(?:[0-9]|[1-9][0-9]*)$/ OR \
+    tag IS present OR \
+    type = pull_request