diff --git a/.travis.yml b/.travis.yml
index ba899c9..6009b6e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,6 @@
 language: php
 
 php:
-  - 5.5
   - 5.6
   - hhvm
   - 7.0
diff --git a/README.md b/README.md
index 01430f8..ac9e18e 100755
--- a/README.md
+++ b/README.md
@@ -13,7 +13,6 @@ Dessa forma podemos manter a API atualizada e ajudar a todos que utlizam a GNRE
 
 Versões suportadas
 =================
-- PHP 5.5
 - PHP 5.6
 - HHVM
 - PHP 7.0
diff --git a/composer.json b/composer.json
index 48a3809..d5d6e98 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
     ],
     "minimum-stability": "dev",
     "require": {
-        "php": ">=5.3.0",
+        "php": ">=5.6.0",
         "mikey179/vfsStream": "1.*",
         "dompdf/dompdf": "0.6.*",
         "phenx/php-font-lib": "0.2.*",