diff --git a/.gitignore b/.gitignore
index 93a771f..e2ff8f0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,7 @@
 /phpspec.yml
 
 /drivers/
+/private/invoices
 
 /bin/*
 !/bin/console
diff --git a/config/packages/doctrine.yaml b/config/packages/doctrine.yaml
index aae69f6..263b813 100644
--- a/config/packages/doctrine.yaml
+++ b/config/packages/doctrine.yaml
@@ -8,7 +8,6 @@ parameters:
 doctrine:
     dbal:
         driver: 'pdo_mysql'
-        server_version: '5.7'
         charset: UTF8
 
         url: '%env(resolve:DATABASE_URL)%'