diff --git a/.travis.yml b/.travis.yml
index d9fb212..73c3238 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,11 +1,8 @@
 language: php
 
 php:
-  - 5.5
-  - 5.6
   - 7.0
   - 7.1
-  - hhvm
 
 env:
   matrix:
diff --git a/README.md b/README.md
index adebca2..606089d 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ foreach ($transactionList->getTransactions() as $transaction) {
 
 Requirements
 ------------
-Fio API PHP works with PHP 5.5, PHP 5.6 or PHP 7.
+Fio API PHP works with PHP 7 or higher.
 
 Submitting bugs and feature requests
 ------------------------------------
@@ -39,6 +39,9 @@ Martin Hujer - <mhujer@gmail.com> - <https://www.martinhujer.cz>
 
 Changelog
 ----------
+## 3.0.0 (2016-11-24)
+- dropped support for PHP <7
+
 ## 2.3.0 (2016-11-24)
 - [#7](https://github.com/mhujer/fio-api-php/pull/7): added official composer CA bundle support (@soukicz)
 
diff --git a/composer.json b/composer.json
index 43b99b6..45f244c 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     }
   ],
   "require": {
-    "php": ">=5.5",
+    "php": ">=7.0",
     "ext-curl": "*",
     "guzzlehttp/guzzle": "~6.1"
   },