diff --git a/Build/php-cs-fixer/config.php b/Build/php-cs-fixer/config.php
index 30cb0ac9c4395ed6b3bf71b7f6bb588dcdd8fbd2..64b4110071ac9b424063fad8c54d661bf2ab61a3 100644
--- a/Build/php-cs-fixer/config.php
+++ b/Build/php-cs-fixer/config.php
@@ -16,7 +16,7 @@ declare(strict_types=1);
  */
 
 /**
- * This file represents the configuration for Code Sniffing PSR-2-related
+ * This file represents the configuration for Code Sniffing PER-related
  * automatic checks of coding guidelines.
  *
  * Run it using runTests.sh, see 'runTests.sh -h' for more options.
@@ -32,7 +32,7 @@ if (PHP_SAPI !== 'cli') {
 }
 
 // Return a Code Sniffing configuration using
-// all sniffers needed for PSR-2
+// all sniffers needed for PER
 // and additionally:
 //  - Remove leading slashes in use clauses.
 //  - PHP single-line arrays should not have trailing comma.
@@ -51,27 +51,21 @@ return (new \PhpCsFixer\Config())
         '@DoctrineAnnotation' => true,
         '@PER' => true,
         'array_syntax' => ['syntax' => 'short'],
-        'blank_line_after_opening_tag' => true,
         'cast_spaces' => ['space' => 'none'],
-        'compact_nullable_typehint' => true,
         'concat_space' => ['spacing' => 'one'],
         'declare_equal_normalize' => ['space' => 'none'],
         'declare_parentheses' => true,
         'dir_constant' => true,
         'function_to_constant' => ['functions' => ['get_called_class', 'get_class', 'get_class_this', 'php_sapi_name', 'phpversion', 'pi']],
         'function_typehint_space' => true,
-        'lowercase_cast' => true,
-        'method_argument_space' => ['on_multiline' => 'ensure_fully_multiline'],
         'modernize_strpos' => true,
         'modernize_types_casting' => true,
         'native_function_casing' => true,
-        'new_with_braces' => true,
         'no_alias_functions' => true,
         'no_blank_lines_after_phpdoc' => true,
         'no_empty_phpdoc' => true,
         'no_empty_statement' => true,
         'no_extra_blank_lines' => true,
-        'no_leading_import_slash' => true,
         'no_leading_namespace_whitespace' => true,
         'no_null_property_initialization' => true,
         'no_short_bool_cast' => true,
@@ -82,8 +76,7 @@ return (new \PhpCsFixer\Config())
         'no_unused_imports' => true,
         'no_useless_else' => true,
         'no_useless_nullsafe_operator' => true,
-        'no_whitespace_in_blank_line' => true,
-        'ordered_imports' => true,
+        'ordered_imports' => ['imports_order' => ['class', 'function', 'const'], 'sort_algorithm' => 'alpha'],
         'php_unit_construct' => ['assertions' => ['assertEquals', 'assertSame', 'assertNotEquals', 'assertNotSame']],
         'php_unit_mock_short_will_return' => true,
         'php_unit_test_case_static_method_calls' => ['call_type' => 'self'],
@@ -98,7 +91,6 @@ return (new \PhpCsFixer\Config())
         'single_quote' => true,
         'single_space_around_construct' => true,
         'single_line_comment_style' => ['comment_types' => ['hash']],
-        'single_trait_insert_per_statement' => true,
         'trailing_comma_in_multiline' => ['elements' => ['arrays']],
         'whitespace_after_comma_in_array' => ['ensure_single_space' => true],
         'yoda_style' => ['equal' => false, 'identical' => false, 'less_and_greater' => false],