diff --git a/rules-tests/TypeDeclaration/Rector/Property/TypedPropertyFromStrictConstructorRector/Fixture/default_array_merge.php.inc b/rules-tests/TypeDeclaration/Rector/Property/TypedPropertyFromStrictConstructorRector/Fixture/default_array_merge.php.inc
new file mode 100644
index 00000000000..2e0f774937c
--- /dev/null
+++ b/rules-tests/TypeDeclaration/Rector/Property/TypedPropertyFromStrictConstructorRector/Fixture/default_array_merge.php.inc
@@ -0,0 +1,35 @@
+<?php
+
+namespace Rector\Tests\TypeDeclaration\Rector\Property\TypedPropertyFromStrictConstructorRector\Fixture;
+
+final class DefaultArrayMerge
+{
+    private $options = [
+        'key' => 'value'
+    ];
+
+    public function __construct(array $options)
+    {
+        $this->options = array_merge($this->options, $options);
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\TypeDeclaration\Rector\Property\TypedPropertyFromStrictConstructorRector\Fixture;
+
+final class DefaultArrayMerge
+{
+    private array $options = [
+        'key' => 'value'
+    ];
+
+    public function __construct(array $options)
+    {
+        $this->options = array_merge($this->options, $options);
+    }
+}
+
+?>
diff --git a/rules/TypeDeclaration/AlreadyAssignDetector/ConstructorAssignDetector.php b/rules/TypeDeclaration/AlreadyAssignDetector/ConstructorAssignDetector.php
index 2175248e75b..aab0c20c809 100644
--- a/rules/TypeDeclaration/AlreadyAssignDetector/ConstructorAssignDetector.php
+++ b/rules/TypeDeclaration/AlreadyAssignDetector/ConstructorAssignDetector.php
@@ -7,12 +7,15 @@
 use PhpParser\Node;
 use PhpParser\Node\Expr;
 use PhpParser\Node\Expr\Assign;
+use PhpParser\Node\Expr\PropertyFetch;
+use PhpParser\Node\Identifier;
 use PhpParser\Node\Stmt;
 use PhpParser\Node\Stmt\ClassLike;
 use PhpParser\Node\Stmt\ClassMethod;
 use PhpParser\Node\Stmt\Else_;
 use PhpParser\Node\Stmt\Expression;
 use PhpParser\Node\Stmt\If_;
+use PhpParser\NodeFinder;
 use PhpParser\NodeTraverser;
 use PHPStan\Type\ObjectType;
 use Rector\Core\NodeAnalyzer\PropertyFetchAnalyzer;
@@ -65,6 +68,13 @@ public function isPropertyAssigned(ClassLike $classLike, string $propertyName):
 
                 /** @var Assign $assign */
                 $assign = $node;
+
+                // is merged in assign?
+                if ($this->isPropertyUsedInAssign($assign, $propertyName)) {
+                    $isAssignedInConstructor = false;
+                    return NodeTraverser::STOP_TRAVERSAL;
+                }
+
                 $isFirstLevelStatement = $assign->getAttribute(self::IS_FIRST_LEVEL_STATEMENT);
 
                 // cannot be nested
@@ -178,4 +188,20 @@ private function matchInitializeClassMethod(ClassLike $classLike): array
 
         return $initializingClassMethods;
     }
+
+    private function isPropertyUsedInAssign(Assign $assign, string $propertyName): bool
+    {
+        $nodeFinder = new NodeFinder();
+        return (bool) $nodeFinder->findFirst($assign->expr, static function (Node $node) use ($propertyName): ?bool {
+            if (! $node instanceof PropertyFetch) {
+                return null;
+            }
+
+            if (! $node->name instanceof Identifier) {
+                return null;
+            }
+
+            return $node->name->toString() === $propertyName;
+        });
+    }
 }
diff --git a/rules/TypeDeclaration/TypeAnalyzer/PropertyTypeDefaultValueAnalyzer.php b/rules/TypeDeclaration/TypeAnalyzer/PropertyTypeDefaultValueAnalyzer.php
index 7c8393c054a..407a00fff6a 100644
--- a/rules/TypeDeclaration/TypeAnalyzer/PropertyTypeDefaultValueAnalyzer.php
+++ b/rules/TypeDeclaration/TypeAnalyzer/PropertyTypeDefaultValueAnalyzer.php
@@ -6,6 +6,7 @@
 
 use PhpParser\Node\Expr;
 use PhpParser\Node\Stmt\PropertyProperty;
+use PHPStan\Type\ArrayType;
 use PHPStan\Type\Type;
 use Rector\StaticTypeMapper\StaticTypeMapper;
 
@@ -24,6 +25,9 @@ public function doesConflictWithDefaultValue(PropertyProperty $propertyProperty,
 
         // the defaults can be in conflict
         $defaultType = $this->staticTypeMapper->mapPhpParserNodePHPStanType($propertyProperty->default);
+        if ($defaultType instanceof ArrayType && $propertyType instanceof ArrayType) {
+            return false;
+        }
 
         // type is not matching, skip it
         return ! $defaultType->isSuperTypeOf($propertyType)