diff --git a/easy-coding-standard.neon b/easy-coding-standard.neon
index 3153b205bca..29f9f9c937a 100644
--- a/easy-coding-standard.neon
+++ b/easy-coding-standard.neon
@@ -11,7 +11,6 @@ checkers:
     SlevomatCodingStandard\Sniffs\Namespaces\ReferenceUsedNamesOnlySniff:
         allowPartialUses: false
         allowFullyQualifiedNameForCollidingClasses: false
-        allowFullyQualifiedGlobalClasses: true
 
     # Metrics
     PHP_CodeSniffer\Standards\Generic\Sniffs\Files\LineLengthSniff:
@@ -21,34 +20,19 @@ checkers:
     PHP_CodeSniffer\Standards\Generic\Sniffs\Metrics\NestingLevelSniff:
         absoluteNestingLevel: 3
 
-    # WhiteSpace
-    PHP_CodeSniffer\Standards\Squiz\Sniffs\WhiteSpace\SuperfluousWhitespaceSniff:
-        ignoreBlankLines: false
-
-    PhpCsFixer\Fixer\Operator\ConcatSpaceFixer:
-        spacing: one
-
-    # new since PhpCsFixer 2.2-2.4
-    PhpCsFixer\Fixer\LanguageConstruct\IsNullFixer:
-        use_yoda_style: false
-
 parameters:
     exclude_checkers:
+        # Excluded from symfony-checkers.neon
         - PhpCsFixer\Fixer\PhpTag\BlankLineAfterOpeningTagFixer
         - PhpCsFixer\Fixer\Operator\NewWithBracesFixer
         - PhpCsFixer\Fixer\Operator\UnaryOperatorSpacesFixer
         - PhpCsFixer\Fixer\Phpdoc\PhpdocAlignFixer
 
     skip:
-        SlevomatCodingStandard\Sniffs\TypeHints\TypeHintDeclarationSniff:
-            - src/Contract/Rector/RectorInterface.php
-            - *src/Rector/Contrib/Nette/*Rector.php
-            - *src/NodeVisitor/Traverse/*Visitor.php
         Symplify\CodingStandard\Fixer\Php\ClassStringToClassConstantFixer:
             # class might not exist
             - src/Rector/Contrib/Nette/RemoveConfiguratorConstantsRector.php
             - src/Rector/Contrib/Nette/NetteObjectToSmartTraitRector.php
-
         Symplify\CodingStandard\Sniffs\Debug\CommentedOutCodeSniff:
             # examples of code to be found
             - src/NodeVisitor/DependencyInjection/NamedServicesToConstructor/GetterToPropertyRector.php
diff --git a/src/Contract/Rector/RectorInterface.php b/src/Contract/Rector/RectorInterface.php
index 9be5a353d4b..7e0b9593bcd 100644
--- a/src/Contract/Rector/RectorInterface.php
+++ b/src/Contract/Rector/RectorInterface.php
@@ -8,8 +8,5 @@ interface RectorInterface
 {
     public function isCandidate(Node $node): bool;
 
-    /**
-     * @param Node $node
-     */
-    public function refactor($node): ?Node;
+    public function refactor(Node $node): ?Node;
 }
diff --git a/src/Rector/Contrib/Nette/InjectPropertyRector.php b/src/Rector/Contrib/Nette/InjectPropertyRector.php
index 884fece37a6..42bbc24cc87 100644
--- a/src/Rector/Contrib/Nette/InjectPropertyRector.php
+++ b/src/Rector/Contrib/Nette/InjectPropertyRector.php
@@ -75,7 +75,7 @@ final class InjectPropertyRector extends AbstractRector
     /**
      * @param Property $propertyNode
      */
-    public function refactor($propertyNode): Node
+    public function refactor(Node $propertyNode): Node
     {
         $propertyDocBlock = $this->createDocBlockFromNode($propertyNode);
         $propertyNode = $this->removeInjectAnnotationFromProperty($propertyNode, $propertyDocBlock);
diff --git a/src/Rector/Contrib/Nette/NetteObjectToSmartTraitRector.php b/src/Rector/Contrib/Nette/NetteObjectToSmartTraitRector.php
index 00d98d6731b..b54fe7cbf34 100644
--- a/src/Rector/Contrib/Nette/NetteObjectToSmartTraitRector.php
+++ b/src/Rector/Contrib/Nette/NetteObjectToSmartTraitRector.php
@@ -65,7 +65,7 @@ final class NetteObjectToSmartTraitRector extends AbstractRector
     /**
      * @param Class_ $classNode
      */
-    public function refactor($classNode): ?Node
+    public function refactor(Node $classNode): ?Node
     {
         $traitUseNode = $this->createTraitUse('Nette\SmartObject');
         $this->statementGlue->addAsFirstTrait($classNode, $traitUseNode);
diff --git a/src/Rector/Contrib/Nette/RemoveConfiguratorConstantsRector.php b/src/Rector/Contrib/Nette/RemoveConfiguratorConstantsRector.php
index 801bd4e38f9..59aeb17491c 100644
--- a/src/Rector/Contrib/Nette/RemoveConfiguratorConstantsRector.php
+++ b/src/Rector/Contrib/Nette/RemoveConfiguratorConstantsRector.php
@@ -32,7 +32,7 @@ final class RemoveConfiguratorConstantsRector extends AbstractRector
     /**
      * @param ClassConstFetch $classConstFetchNode
      */
-    public function refactor($classConstFetchNode): ?Node
+    public function refactor(Node $classConstFetchNode): ?Node
     {
         $constantName = (string) $classConstFetchNode->name;
         $string = strtolower($constantName);