diff --git a/.travis.yml b/.travis.yml
index 2b902714..07edc0b5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,5 @@
 language: php
 php:
-    - 5.3.3
     - 5.4
     - 5.5
     - 5.6
@@ -9,7 +8,6 @@ php:
 
 matrix:
     allow_failures:
-        - php: 7.0
         - php: hhvm
 
 script:
diff --git a/composer.json b/composer.json
index 855ac2ab..c4a2e63e 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
 		}
 	],
 	"require": {
-		"php": ">=5.2.0"
+		"php": ">=5.4.4"
 	},
 	"require-dev": {
 		"tracy/tracy": "~2.2",
diff --git a/readme.md b/readme.md
index cb6b440d..74acea8a 100644
--- a/readme.md
+++ b/readme.md
@@ -17,7 +17,7 @@ Or you can download the latest package from http://dibiphp.com. In this
 package is also `Dibi.minified`, shrinked single-file version of whole Dibi,
 useful when you don't want to modify the library, but just use it.
 
-Dibi requires PHP 5.2.0 or later. It has been tested with PHP 5.5 too.
+Dibi requires PHP 5.4.4 or later. It has been tested with PHP 7 too.
 
 
 Examples
diff --git a/src/loader.php b/src/loader.php
index 762911b2..6d1c6af9 100644
--- a/src/loader.php
+++ b/src/loader.php
@@ -6,11 +6,8 @@
  */
 
 
-/**
- * Check PHP configuration.
- */
-if (version_compare(PHP_VERSION, '5.2.0', '<')) {
-	throw new Exception('dibi needs PHP 5.2.0 or newer.');
+if (PHP_VERSION_ID < 50404) {
+	throw new Exception('Dibi requires PHP 5.4.4 or newer.');
 }