diff --git a/.gitignore b/.gitignore
index 52b1bac..e3fdcbf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,7 +16,7 @@ Thumbs.db
 /vendor
 
 # composer itself is not needed
-/composer.phar
+composer.phar
 # composer.lock should not be committed as we always want the latest versions
 /composer.lock
 
@@ -24,6 +24,6 @@ Thumbs.db
 .DS_Store
 
 # phpunit itself is not needed
-/phpunit.phar
+phpunit.phar
 # local phpunit config
 /phpunit.xml
diff --git a/.travis.yml b/.travis.yml
index def1c47..957efad 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,7 @@ services:
 install:
   - composer self-update && composer --version
 #  - composer require satooshi/php-coveralls 0.6.* --dev --prefer-dist
+  - composer install --prefer-dist
   - tests/unit/data/travis/mongodb-setup.sh
   - tests/unit/data/travis/apc-setup.sh
   - tests/unit/data/travis/memcache-setup.sh
@@ -27,7 +28,7 @@ before_script:
   - mongo yii2test --eval 'db.addUser("travis", "test");'
 
 script:
-  - phpunit --coverage-text --coverage-clover tests/unit/runtime/coveralls/clover.xml --verbose --exclude-group mssql,oci,wincache,xcache,zenddata,vendor
+  - vendor/bin/phpunit --coverage-text --coverage-clover tests/unit/runtime/coveralls/clover.xml --verbose --exclude-group mssql,oci,wincache,xcache,zenddata,vendor
 
 #after_script:
 #  - php vendor/bin/coveralls
diff --git a/composer.json b/composer.json
index dfd4fbb..a8f0fee 100644
--- a/composer.json
+++ b/composer.json
@@ -77,10 +77,6 @@
 	},
 	"require-dev": {
 		"twbs/bootstrap": "3.0.*",
-		"ext-curl": "*",
-		"ext-mongo": ">=1.3.0",
-		"ext-pdo": "*",
-		"ext-pdo_mysql": "*",
 		"smarty/smarty": "*",
 		"swiftmailer/swiftmailer": "*",
 		"twig/twig": "*",