diff --git a/.travis.yml b/.travis.yml
index 2af9daf9..89c4d520 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,6 @@
 language: php
 
 php:
-  - 5.6
   - 7.0
   - 7.1
   - 7.2
@@ -11,23 +10,9 @@ env:
     - PATH=$PATH:/home/travis/.config/composer/vendor/bin
     - TRAVIS_NODE_VERSION="4.0.0"
   matrix:
-    - DRUPAL_VERSION=6
     - DRUPAL_VERSION=7
     - DRUPAL_VERSION=8
 
-matrix:
-  exclude:
-    - php: 5.6
-      env: DRUPAL_VERSION=6
-    - php: 5.6
-      env: DRUPAL_VERSION=8
-    - php: 7.0
-      env: DRUPAL_VERSION=6
-    - php: 7.1
-      env: DRUPAL_VERSION=6
-    - php: 7.2
-      env: DRUPAL_VERSION=6
-
 # Enable Travis containers.
 sudo: false
 
diff --git a/composer.json b/composer.json
index 0abd40af..f929638c 100644
--- a/composer.json
+++ b/composer.json
@@ -30,7 +30,6 @@
     "drupal/drupal-driver": "^2.0.0",
     "symfony/browser-kit": "^3.4",
     "symfony/dependency-injection": "~3.0",
-    "symfony/event-dispatcher": "~3.0",
     "symfony/translation": "^3.4"
   },
   "require-dev": {