diff --git a/packages/PHPStanStaticTypeMapper/TypeMapper/UnionTypeMapper.php b/packages/PHPStanStaticTypeMapper/TypeMapper/UnionTypeMapper.php
index 249df882835..a73769fba13 100644
--- a/packages/PHPStanStaticTypeMapper/TypeMapper/UnionTypeMapper.php
+++ b/packages/PHPStanStaticTypeMapper/TypeMapper/UnionTypeMapper.php
@@ -190,7 +190,7 @@ private function resolveNullableType(NullableType $nullableType): null|NullableT
     private function mapNullabledType(Type $nullabledType, string $typeKind): ?Node
     {
         // void cannot be nullable
-        if ($nullabledType instanceof VoidType) {
+        if ($nullabledType->isVoid()->yes()) {
             return null;
         }
 
diff --git a/packages/VendorLocker/NodeVendorLocker/ClassMethodReturnTypeOverrideGuard.php b/packages/VendorLocker/NodeVendorLocker/ClassMethodReturnTypeOverrideGuard.php
index d068d59b067..77a9eafec59 100644
--- a/packages/VendorLocker/NodeVendorLocker/ClassMethodReturnTypeOverrideGuard.php
+++ b/packages/VendorLocker/NodeVendorLocker/ClassMethodReturnTypeOverrideGuard.php
@@ -14,7 +14,6 @@
 use PHPStan\Reflection\MethodReflection;
 use PHPStan\Reflection\ReflectionProvider;
 use PHPStan\Type\MixedType;
-use PHPStan\Type\VoidType;
 use Rector\Core\FileSystem\FilePathHelper;
 use Rector\Core\PhpParser\AstResolver;
 use Rector\Core\PhpParser\Node\BetterNodeFinder;
@@ -176,9 +175,15 @@ private function shouldSkipHasChildHasReturnType(array $childrenClassReflections
             }
 
             $childReturnType = $this->returnTypeInferer->inferFunctionLike($method);
-            if ($returnType instanceof VoidType && ! $childReturnType instanceof VoidType) {
-                return true;
+            if (!$returnType->isVoid()->yes()) {
+                continue;
             }
+
+            if ($childReturnType->isVoid()->yes()) {
+                continue;
+            }
+
+            return true;
         }
 
         return false;
diff --git a/rules/Php72/NodeFactory/AnonymousFunctionFactory.php b/rules/Php72/NodeFactory/AnonymousFunctionFactory.php
index 43830a62a2c..20a6717cf39 100644
--- a/rules/Php72/NodeFactory/AnonymousFunctionFactory.php
+++ b/rules/Php72/NodeFactory/AnonymousFunctionFactory.php
@@ -401,7 +401,7 @@ private function resolveStmts(
         FunctionVariantWithPhpDocs $functionVariantWithPhpDocs,
         StaticCall|MethodCall $innerMethodCall
     ): array {
-        if ($functionVariantWithPhpDocs->getReturnType() instanceof VoidType) {
+        if ($functionVariantWithPhpDocs->getReturnType()->isVoid()->yes()) {
             return [new Expression($innerMethodCall)];
         }
 
diff --git a/rules/TypeDeclaration/Rector/ArrowFunction/AddArrowFunctionReturnTypeRector.php b/rules/TypeDeclaration/Rector/ArrowFunction/AddArrowFunctionReturnTypeRector.php
index 6d89b3ee45e..af3fc71dc88 100644
--- a/rules/TypeDeclaration/Rector/ArrowFunction/AddArrowFunctionReturnTypeRector.php
+++ b/rules/TypeDeclaration/Rector/ArrowFunction/AddArrowFunctionReturnTypeRector.php
@@ -6,7 +6,6 @@
 
 use PhpParser\Node;
 use PhpParser\Node\Expr\ArrowFunction;
-use PHPStan\Type\VoidType;
 use Rector\Core\Rector\AbstractRector;
 use Rector\Core\ValueObject\PhpVersionFeature;
 use Rector\PHPStanStaticTypeMapper\Enum\TypeKind;
@@ -53,7 +52,7 @@ public function refactor(Node $node): ?Node
 
         $type = $this->getType($node->expr);
 
-        if ($type instanceof VoidType) {
+        if ($type->isVoid()->yes()) {
             return null;
         }
 
diff --git a/rules/TypeDeclaration/Rector/ClassMethod/ReturnTypeFromStrictTypedCallRector.php b/rules/TypeDeclaration/Rector/ClassMethod/ReturnTypeFromStrictTypedCallRector.php
index 9d4cef82c87..b33f93d85cc 100644
--- a/rules/TypeDeclaration/Rector/ClassMethod/ReturnTypeFromStrictTypedCallRector.php
+++ b/rules/TypeDeclaration/Rector/ClassMethod/ReturnTypeFromStrictTypedCallRector.php
@@ -20,7 +20,6 @@
 use PHPStan\Type\NullType;
 use PHPStan\Type\ObjectType;
 use PHPStan\Type\UnionType;
-use PHPStan\Type\VoidType;
 use Rector\Core\Php\PhpVersionProvider;
 use Rector\Core\Rector\AbstractRector;
 use Rector\Core\ValueObject\PhpVersionFeature;
@@ -150,7 +149,7 @@ private function processArrowFunction(ArrowFunction $arrowFunction): ?ArrowFunct
         $resolvedType = $this->nodeTypeResolver->getType($arrowFunction->expr);
 
         // void type is not accepted for arrow functions - https://www.php.net/manual/en/functions.arrow.php#125673
-        if ($resolvedType instanceof VoidType) {
+        if ($resolvedType->isVoid()->yes()) {
             return null;
         }
 
@@ -169,7 +168,7 @@ private function isUnionPossibleReturnsVoid(ClassMethod | Function_ | Closure $n
         $inferReturnType = $this->returnTypeInferer->inferFunctionLike($node);
         if ($inferReturnType instanceof UnionType) {
             foreach ($inferReturnType->getTypes() as $type) {
-                if ($type instanceof VoidType) {
+                if ($type->isVoid()->yes()) {
                     return true;
                 }
             }
diff --git a/rules/TypeDeclaration/TypeInferer/ReturnTypeInferer.php b/rules/TypeDeclaration/TypeInferer/ReturnTypeInferer.php
index 92dec6dec31..3ae8c01e70c 100644
--- a/rules/TypeDeclaration/TypeInferer/ReturnTypeInferer.php
+++ b/rules/TypeDeclaration/TypeInferer/ReturnTypeInferer.php
@@ -122,7 +122,7 @@ private function resolveTypeWithVoidHandling(
         ClassMethod|Function_|Closure|ArrowFunction $functionLike,
         Type $resolvedType
     ): Type {
-        if ($resolvedType instanceof VoidType) {
+        if ($resolvedType->isVoid()->yes()) {
             if ($functionLike instanceof ArrowFunction) {
                 return new MixedType();
             }
diff --git a/rules/TypeDeclaration/TypeInferer/ReturnTypeInferer/ReturnedNodesReturnTypeInfererTypeInferer.php b/rules/TypeDeclaration/TypeInferer/ReturnTypeInferer/ReturnedNodesReturnTypeInfererTypeInferer.php
index d9ceabc045a..69d6b453b4b 100644
--- a/rules/TypeDeclaration/TypeInferer/ReturnTypeInferer/ReturnedNodesReturnTypeInfererTypeInferer.php
+++ b/rules/TypeDeclaration/TypeInferer/ReturnTypeInferer/ReturnedNodesReturnTypeInfererTypeInferer.php
@@ -170,7 +170,7 @@ private function correctWithNestedType(Type $resolvedType, Return_ $return, Func
             $correctedType = $this->inferFromReturnedMethodCall($return, $functionLike);
 
             // override only if has some extra value
-            if (! $correctedType instanceof MixedType && ! $correctedType instanceof VoidType) {
+            if (! $correctedType instanceof MixedType && ! $correctedType->isVoid()->yes()) {
                 return $correctedType;
             }
         }