diff --git a/.travis.yml b/.travis.yml
index 13a647c..ba34ffe 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,6 @@
 language: php
 
 php:
-  - 5.3
   - 5.4
   - 5.5
   - 5.6
diff --git a/composer.json b/composer.json
index fc1679b..438a56e 100644
--- a/composer.json
+++ b/composer.json
@@ -9,8 +9,8 @@
         "php": ">=5.4"
     },
     "require-dev": {
-        "phpunit/phpunit": "4.3.5",
-        "satooshi/php-coveralls": ">=0.6.1",
+        "phpunit/phpunit": "4.8.*",
+        "satooshi/php-coveralls": "~1.0",
         "php-mock/php-mock": "^0.1"
     },
     "autoload": {