diff --git a/.travis.yml b/.travis.yml
index 9987532..dd4e7db 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,11 +1,24 @@
 language: php
-php:
-  - 5.6
-  - 7.0
-  - 7.1
 
-before_script:
+before_install:
   - travis_retry composer self-update
-  - travis_retry composer install --prefer-dist --no-interaction
+  - composer require "illuminate/support:${ILLUMINATE_VERSION}" --no-update
+
+install: composer update --prefer-source --no-interaction --dev
 
 script: composer test
+
+matrix:
+  include:
+    - php: 5.6
+      env: ILLUMINATE_VERSION=5.3.7
+    - php: 5.6
+      env: ILLUMINATE_VERSION=5.4.*
+    - php: 7.0
+      env: ILLUMINATE_VERSION=5.4.*
+    - php: 7.1
+      env: ILLUMINATE_VERSION=5.5.*
+    - php: 7.1
+      env: ILLUMINATE_VERSION=5.6.*
+    - php: nightly
+      env: ILLUMINATE_VERSION=5.6.*
diff --git a/composer.json b/composer.json
index 93b2ccd..662e140 100644
--- a/composer.json
+++ b/composer.json
@@ -21,12 +21,12 @@
     ],
     "require": {
         "php" : ">=5.6.0|>=7.0",
-        "illuminate/support": "~5.3.28|~5.4|~5.5",
+        "illuminate/support": "~5.3.28|~5.4|~5.5|~5.6",
         "bjeavons/zxcvbn-php": "0.3.0"
     },
     "require-dev": {
-        "phpunit/phpunit" : "5.7.*|~6.0",
-        "orchestra/testbench": "~3.3|~3.4|~3.5"
+        "phpunit/phpunit" : "5.7.*|~6.0|~7.0",
+        "orchestra/testbench": "~3.3|~3.4|~3.5|~3.6"
     },
     "autoload": {
         "psr-4": {