diff --git a/.gitignore b/.gitignore
index 12c0626..2fa08ac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,7 @@
 *.swp
 composer.phar
 vendor/
-
+.idea
 # Commit your application's lock file http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file
 # You may choose to ignore a library lock file http://getcomposer.org/doc/02-libraries.md#lock-file
 composer.lock
diff --git a/README.md b/README.md
index 07afb19..dd72487 100644
--- a/README.md
+++ b/README.md
@@ -343,3 +343,8 @@ Don't have the pre-commit hook running, please make sure to run the fixer/sniffe
 $ vendor/bin/php-cs-fixer fix src/
 $ vendor/bin/php-cs-fixer fix tests/
 ```
+
+PHP 7
+-----
+Please run before:
+composer require alcaeus/mongo-php-adapter
\ No newline at end of file
diff --git a/composer.json b/composer.json
index dd58e45..e09245f 100644
--- a/composer.json
+++ b/composer.json
@@ -15,8 +15,8 @@
     "require": {
         "php": ">=5.3.2",
         "doctrine/mongodb": "1.*",
-        "symfony/console": "^2.5|^3.0",
-        "symfony/yaml": "^2.5|^3.0"
+        "symfony/console": "^2.5|^3.0|^4",
+        "symfony/yaml": "^2.5|^3.0|^4"
     },
     "require-dev": {
         "antimattr/test-case": "~1.0@stable",