diff --git a/.travis.yml b/.travis.yml
index 85cf208a..68b240e8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,15 +16,13 @@ matrix:
 
 cache:
   directories:
-    - vendor
     - $HOME/.composer/cache
 
 before_install:
-  - composer self-update
-  - composer validate
+  - travis_retry composer self-update
 
 install:
-  - travis_retry composer install --prefer-dist
+  - travis_retry composer update --no-interaction --prefer-source
 
 script:
   - composer test
diff --git a/composer.json b/composer.json
index 72ef4ff5..02ed40f4 100644
--- a/composer.json
+++ b/composer.json
@@ -9,8 +9,7 @@
         {
             "name" : "Ignace Nyamagana Butera",
             "email" : "nyamsprod@gmail.com",
-            "homepage" : "https://github.com/nyamsprod/",
-            "role" : "Developer"
+            "homepage" : "https://nyamsprod.com"
         }
     ],
     "support": {
@@ -27,7 +26,7 @@
     },
     "require-dev": {
         "fabpot/php-cs-fixer": "^1.9",
-        "phpunit/phpunit" : "^4.0 || ^5.0"
+        "phpunit/phpunit" : "^4.0"
     },
     "autoload": {
         "psr-4": {