diff --git a/rules-tests/TypedCollections/Rector/ClassMethod/RemoveNullFromNullableCollectionTypeRector/Fixture/remove_default_null.php.inc b/rules-tests/TypedCollections/Rector/ClassMethod/RemoveNullFromNullableCollectionTypeRector/Fixture/remove_default_null.php.inc
new file mode 100644
index 00000000..64afaa12
--- /dev/null
+++ b/rules-tests/TypedCollections/Rector/ClassMethod/RemoveNullFromNullableCollectionTypeRector/Fixture/remove_default_null.php.inc
@@ -0,0 +1,51 @@
+<?php
+
+namespace Rector\Doctrine\Tests\TypedCollections\Rector\ClassMethod\RemoveNullFromNullableCollectionTypeRector\Fixture;
+
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
+use Doctrine\ODM\MongoDB\Mapping\Annotations as MongoDB;
+use Symfony\Component\Validator\Constraints as Assert;
+
+final class RemoveDefaultNull
+{
+    /**
+     * @MongoDB\EmbedMany()
+     * @var Collection<int, string>|null
+     * @Assert\Valid()
+     */
+    private ?Collection $collection = null;
+
+    public function __construct()
+    {
+        $this->collection = new ArrayCollection([]);
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Doctrine\Tests\TypedCollections\Rector\ClassMethod\RemoveNullFromNullableCollectionTypeRector\Fixture;
+
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\Common\Collections\Collection;
+use Doctrine\ODM\MongoDB\Mapping\Annotations as MongoDB;
+use Symfony\Component\Validator\Constraints as Assert;
+
+final class RemoveDefaultNull
+{
+    /**
+     * @MongoDB\EmbedMany()
+     * @var Collection<int, string>|null
+     * @Assert\Valid()
+     */
+    private Collection $collection;
+
+    public function __construct()
+    {
+        $this->collection = new ArrayCollection([]);
+    }
+}
+
+?>
diff --git a/rules/CodeQuality/Rector/Class_/MoveCurrentDateTimeDefaultInEntityToConstructorRector.php b/rules/CodeQuality/Rector/Class_/MoveCurrentDateTimeDefaultInEntityToConstructorRector.php
index 1f443af3..57159595 100644
--- a/rules/CodeQuality/Rector/Class_/MoveCurrentDateTimeDefaultInEntityToConstructorRector.php
+++ b/rules/CodeQuality/Rector/Class_/MoveCurrentDateTimeDefaultInEntityToConstructorRector.php
@@ -20,6 +20,7 @@
 use Rector\Doctrine\NodeAnalyzer\ConstructorAssignPropertyAnalyzer;
 use Rector\Doctrine\NodeFactory\ValueAssignFactory;
 use Rector\Doctrine\NodeManipulator\ConstructorManipulator;
+use Rector\Doctrine\TypedCollections\NodeModifier\PropertyDefaultNullRemover;
 use Rector\PhpParser\Node\Value\ValueResolver;
 use Rector\Rector\AbstractRector;
 use Rector\ValueObject\MethodName;
@@ -42,6 +43,7 @@ public function __construct(
         private readonly DocBlockUpdater $docBlockUpdater,
         private readonly PhpDocInfoFactory $phpDocInfoFactory,
         private readonly ValueResolver $valueResolver,
+        private readonly PropertyDefaultNullRemover $propertyDefaultNullRemover
     ) {
     }
 
@@ -189,8 +191,7 @@ private function refactorClassWithRemovalDefault(Class_ $class, Property $proper
         }
 
         // 3. remove default from property
-        $onlyProperty = $property->props[0];
-        $onlyProperty->default = null;
+        $this->propertyDefaultNullRemover->remove($property);
 
         $this->hasChanged = true;
     }
diff --git a/rules/TypedCollections/NodeModifier/PropertyDefaultNullRemover.php b/rules/TypedCollections/NodeModifier/PropertyDefaultNullRemover.php
new file mode 100644
index 00000000..9ab38f8e
--- /dev/null
+++ b/rules/TypedCollections/NodeModifier/PropertyDefaultNullRemover.php
@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Rector\Doctrine\TypedCollections\NodeModifier;
+
+use PhpParser\Node\Expr;
+use PhpParser\Node\Stmt\Property;
+
+final class PropertyDefaultNullRemover
+{
+    public function remove(Property $property): void
+    {
+        $soleProperty = $property->props[0];
+        if (! $soleProperty->default instanceof Expr) {
+            return;
+        }
+
+        $soleProperty->default = null;
+    }
+}
diff --git a/rules/TypedCollections/Rector/ClassMethod/RemoveNullFromNullableCollectionTypeRector.php b/rules/TypedCollections/Rector/ClassMethod/RemoveNullFromNullableCollectionTypeRector.php
index 5deae516..980ffb10 100644
--- a/rules/TypedCollections/Rector/ClassMethod/RemoveNullFromNullableCollectionTypeRector.php
+++ b/rules/TypedCollections/Rector/ClassMethod/RemoveNullFromNullableCollectionTypeRector.php
@@ -17,6 +17,7 @@
 use Rector\BetterPhpDocParser\PhpDocInfo\PhpDocInfoFactory;
 use Rector\BetterPhpDocParser\PhpDocManipulator\PhpDocTypeChanger;
 use Rector\Doctrine\Enum\DoctrineClass;
+use Rector\Doctrine\TypedCollections\NodeModifier\PropertyDefaultNullRemover;
 use Rector\PHPUnit\NodeAnalyzer\TestsNodeAnalyzer;
 use Rector\Rector\AbstractRector;
 use Rector\StaticTypeMapper\StaticTypeMapper;
@@ -32,7 +33,8 @@ public function __construct(
         private readonly TestsNodeAnalyzer $testsNodeAnalyzer,
         private readonly PhpDocInfoFactory $phpDocInfoFactory,
         private readonly PhpDocTypeChanger $phpDocTypeChanger,
-        private readonly StaticTypeMapper $staticTypeMapper
+        private readonly StaticTypeMapper $staticTypeMapper,
+        private readonly PropertyDefaultNullRemover $propertyDefaultNullRemover
     ) {
     }
 
@@ -132,6 +134,8 @@ private function refactorProperty(Property $property): ?Property
             // unwrap nullable type
             $property->type = $property->type->type;
 
+            $this->propertyDefaultNullRemover->remove($property);
+
             return $property;
         }
 
diff --git a/rules/TypedCollections/Rector/Class_/InitializeCollectionInConstructorRector.php b/rules/TypedCollections/Rector/Class_/InitializeCollectionInConstructorRector.php
index 681335d7..e5d6b5f5 100644
--- a/rules/TypedCollections/Rector/Class_/InitializeCollectionInConstructorRector.php
+++ b/rules/TypedCollections/Rector/Class_/InitializeCollectionInConstructorRector.php
@@ -5,10 +5,10 @@
 namespace Rector\Doctrine\TypedCollections\Rector\Class_;
 
 use PhpParser\Node;
-use PhpParser\Node\Expr;
 use PhpParser\Node\Stmt\Class_;
 use Rector\Doctrine\NodeFactory\ArrayCollectionAssignFactory;
 use Rector\Doctrine\TypedCollections\NodeAnalyzer\EntityLikeClassDetector;
+use Rector\Doctrine\TypedCollections\NodeModifier\PropertyDefaultNullRemover;
 use Rector\NodeManipulator\ClassDependencyManipulator;
 use Rector\PHPUnit\NodeAnalyzer\TestsNodeAnalyzer;
 use Rector\Rector\AbstractRector;
@@ -29,6 +29,7 @@ public function __construct(
         private readonly ArrayCollectionAssignFactory $arrayCollectionAssignFactory,
         private readonly ClassDependencyManipulator $classDependencyManipulator,
         private readonly TestsNodeAnalyzer $testsNodeAnalyzer,
+        private readonly PropertyDefaultNullRemover $propertyDefaultNullRemover
     ) {
     }
 
@@ -108,9 +109,7 @@ public function refactor(Node $node): ?Node
             }
 
             // make sure is null
-            if ($property->props[0]->default instanceof Expr) {
-                $property->props[0]->default = null;
-            }
+            $this->propertyDefaultNullRemover->remove($property);
 
             /** @var string $propertyName */
             $propertyName = $this->getName($property);
diff --git a/rules/TypedCollections/Rector/Property/NarrowPropertyUnionToCollectionRector.php b/rules/TypedCollections/Rector/Property/NarrowPropertyUnionToCollectionRector.php
index 4260d711..adffb723 100644
--- a/rules/TypedCollections/Rector/Property/NarrowPropertyUnionToCollectionRector.php
+++ b/rules/TypedCollections/Rector/Property/NarrowPropertyUnionToCollectionRector.php
@@ -6,7 +6,6 @@
 
 use Doctrine\Common\Collections\Collection;
 use PhpParser\Node;
-use PhpParser\Node\Expr;
 use PhpParser\Node\Name;
 use PhpParser\Node\Name\FullyQualified;
 use PhpParser\Node\Stmt\Class_;
@@ -18,6 +17,7 @@
 use Rector\Comments\NodeDocBlock\DocBlockUpdater;
 use Rector\Doctrine\Enum\DoctrineClass;
 use Rector\Doctrine\TypedCollections\DocBlockProcessor\UnionCollectionTagValueNodeNarrower;
+use Rector\Doctrine\TypedCollections\NodeModifier\PropertyDefaultNullRemover;
 use Rector\Rector\AbstractRector;
 use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
 use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
@@ -30,7 +30,8 @@ final class NarrowPropertyUnionToCollectionRector extends AbstractRector
     public function __construct(
         private readonly PhpDocInfoFactory $phpDocInfoFactory,
         private readonly DocBlockUpdater $docBlockUpdater,
-        private readonly UnionCollectionTagValueNodeNarrower $unionCollectionTagValueNodeNarrower
+        private readonly UnionCollectionTagValueNodeNarrower $unionCollectionTagValueNodeNarrower,
+        private readonly PropertyDefaultNullRemover $propertyDefaultNullRemover
     ) {
     }
 
@@ -133,9 +134,7 @@ private function refactorNativePropertyType(Property $property): bool
             $property->type = new FullyQualified(DoctrineClass::COLLECTION);
 
             // remove default, as will be defined in constructor by another rule
-            if ($property->props[0]->default instanceof Expr) {
-                $property->props[0]->default = null;
-            }
+            $this->propertyDefaultNullRemover->remove($property);
 
             return true;
         }
diff --git a/rules/TypedCollections/Rector/Property/TypedPropertyFromToManyRelationTypeRector.php b/rules/TypedCollections/Rector/Property/TypedPropertyFromToManyRelationTypeRector.php
index e12db832..e6a1bce4 100644
--- a/rules/TypedCollections/Rector/Property/TypedPropertyFromToManyRelationTypeRector.php
+++ b/rules/TypedCollections/Rector/Property/TypedPropertyFromToManyRelationTypeRector.php
@@ -11,6 +11,7 @@
 use PHPStan\Type\UnionType;
 use Rector\Doctrine\Enum\DoctrineClass;
 use Rector\Doctrine\NodeManipulator\ToManyRelationPropertyTypeResolver;
+use Rector\Doctrine\TypedCollections\NodeModifier\PropertyDefaultNullRemover;
 use Rector\PHPStanStaticTypeMapper\Enum\TypeKind;
 use Rector\Rector\AbstractRector;
 use Rector\StaticTypeMapper\StaticTypeMapper;
@@ -27,6 +28,7 @@ final class TypedPropertyFromToManyRelationTypeRector extends AbstractRector imp
     public function __construct(
         private readonly ToManyRelationPropertyTypeResolver $toManyRelationPropertyTypeResolver,
         private readonly StaticTypeMapper $staticTypeMapper,
+        private readonly PropertyDefaultNullRemover $propertyDefaultNullRemover,
     ) {
     }
 
@@ -102,9 +104,7 @@ public function refactor(Node $node): ?Property
         }
 
         // remove default null value if any
-        if ($node->props[0]->default !== null) {
-            $node->props[0]->default = null;
-        }
+        $this->propertyDefaultNullRemover->remove($node);
 
         if (! $propertyType instanceof UnionType) {
             $node->type = $typeNode;