diff --git a/composer.json b/composer.json
index e34094d..526e501 100644
--- a/composer.json
+++ b/composer.json
@@ -2,9 +2,9 @@
     "name": "linkage/doctrine-row-level-security",
     "type": "library",
     "require": {
-        "doctrine/dbal": "^2.13",
+        "doctrine/dbal": "^3.0",
         "doctrine/orm": "^2.14",
-        "php": ">=8.1"
+        "php": ">=8.2"
     },
     "require-dev": {
         "phpunit/phpunit": "^10.0",
diff --git a/src/RowLevelSecurityAwareComparator.php b/src/RowLevelSecurityAwareComparator.php
index 147048a..82a138d 100644
--- a/src/RowLevelSecurityAwareComparator.php
+++ b/src/RowLevelSecurityAwareComparator.php
@@ -4,6 +4,7 @@
 
 namespace Linkage\DoctrineRowLevelSecurity;
 
+use Doctrine\DBAL\Platforms\AbstractPlatform;
 use Doctrine\DBAL\Schema\Comparator;
 use Doctrine\DBAL\Schema\Schema;
 use Doctrine\DBAL\Schema\SchemaDiff;
@@ -11,18 +12,16 @@
 use Doctrine\DBAL\Schema\Table;
 use Doctrine\DBAL\Schema\TableDiff;
 
-class RowLevelSecurityAwareComparator
+class RowLevelSecurityAwareComparator extends Comparator
 {
-    private readonly Comparator $delegate;
-
-    public function __construct()
+    public function __construct(AbstractPlatform $platform)
     {
-        $this->delegate = new Comparator();
+        parent::__construct($platform);
     }
 
     public function compareSchemas(Schema $fromSchema, Schema $toSchema): RowLevelSecurityAwareSchemaDiff|SchemaDiff
     {
-        $baseDiff = $this->delegate->compare($fromSchema, $toSchema);
+        $baseDiff = parent::compareSchemas($fromSchema, $toSchema);
 
         $hasRlsDiff = false;
         foreach ($toSchema->getTables() as $toTable) {
@@ -32,9 +31,9 @@ public function compareSchemas(Schema $fromSchema, Schema $toSchema): RowLevelSe
                 // 新規テーブルは差分がある扱いなのでcreateのイベントリスナに任せる
                 continue;
             }
-            $tableDiff = $this->diffTable($fromTable, $toTable);
+            $tableDiff = $this->compareTable($fromTable, $toTable);
             if ($tableDiff instanceof RowLevelSecurityAwareTableDiff) {
-                $baseDiff->changedTables[$tableDiff->name] = $tableDiff;
+                $baseDiff->changedTables[$tableDiff->getOldTable()->getName()] = $tableDiff;
                 $hasRlsDiff = true;
             }
         }
@@ -42,13 +41,12 @@ public function compareSchemas(Schema $fromSchema, Schema $toSchema): RowLevelSe
         return $hasRlsDiff ? new RowLevelSecurityAwareSchemaDiff($baseDiff) : $baseDiff;
     }
 
-    public function diffTable(Table $fromTable, Table $toTable): TableDiff|bool
+    public function compareTable(Table $fromTable, Table $toTable): TableDiff
     {
-        $baseDiff = $this->delegate->diffTable($fromTable, $toTable);
+        $baseTableDiff = parent::compareTable($fromTable, $toTable);
 
         if ($toTable->hasOption(RowLevelSecurityConfig::RLS_OPTION_NAME) && !$fromTable->hasOption(RowLevelSecurityConfig::RLS_OPTION_NAME)) {
             // RLSがなかったテーブルにRLSを足した時
-            $baseTableDiff = $baseDiff instanceof TableDiff ? $baseDiff : new TableDiff($toTable->getName(), fromTable: $fromTable);
             $rlsTableDiff = new RowLevelSecurityAwareTableDiff($baseTableDiff);
             $rlsTableDiff->addedRowLevelSecurity = $toTable->getOption(RowLevelSecurityConfig::RLS_OPTION_NAME);
 
@@ -56,13 +54,12 @@ public function diffTable(Table $fromTable, Table $toTable): TableDiff|bool
         }
         if (!$toTable->hasOption(RowLevelSecurityConfig::RLS_OPTION_NAME) && $fromTable->hasOption(RowLevelSecurityConfig::RLS_OPTION_NAME)) {
             // RLSがあったテーブルのRLSを消した時
-            $baseTableDiff = $baseDiff instanceof TableDiff ? $baseDiff : new TableDiff($toTable->getName(), fromTable: $fromTable);
             $rlsTableDiff = new RowLevelSecurityAwareTableDiff($baseTableDiff);
             $rlsTableDiff->removedRowLevelSecurity = $fromTable->getOption(RowLevelSecurityConfig::RLS_OPTION_NAME);
 
             return $rlsTableDiff;
         }
 
-        return $baseDiff;
+        return $baseTableDiff;
     }
 }
diff --git a/src/RowLevelSecurityAwarePostgreSqlConnection.php b/src/RowLevelSecurityAwarePostgreSqlConnection.php
index 20a38d9..084a45b 100644
--- a/src/RowLevelSecurityAwarePostgreSqlConnection.php
+++ b/src/RowLevelSecurityAwarePostgreSqlConnection.php
@@ -11,6 +11,6 @@ class RowLevelSecurityAwarePostgreSqlConnection extends Connection
 {
     public function getSchemaManager(): AbstractSchemaManager
     {
-        return new RowLevelSecurityAwarePostgreSqlSchemaManager($this);
+        return new RowLevelSecurityAwarePostgreSqlSchemaManager($this, $this->getDatabasePlatform());
     }
 }
diff --git a/src/RowLevelSecurityAwarePostgreSqlSchemaManager.php b/src/RowLevelSecurityAwarePostgreSqlSchemaManager.php
index c889962..ca8c2c8 100644
--- a/src/RowLevelSecurityAwarePostgreSqlSchemaManager.php
+++ b/src/RowLevelSecurityAwarePostgreSqlSchemaManager.php
@@ -6,16 +6,19 @@
 
 use Doctrine\DBAL\Connection;
 use Doctrine\DBAL\Exception\DriverException;
+use Doctrine\DBAL\Platforms\AbstractPlatform;
 use Doctrine\DBAL\Platforms\PostgreSqlPlatform;
+use Doctrine\DBAL\Schema\Comparator;
 use Doctrine\DBAL\Schema\PostgreSqlSchemaManager;
 use Doctrine\DBAL\Schema\Table;
 
 class RowLevelSecurityAwarePostgreSqlSchemaManager extends PostgreSqlSchemaManager
 {
     public function __construct(
-        Connection $conn
+        Connection $conn,
+        AbstractPlatform $platform,
     ) {
-        parent::__construct($conn);
+        parent::__construct($conn, $platform);
     }
 
     public function listTableDetails($name): Table
@@ -53,8 +56,8 @@ public function listTableDetails($name): Table
         return $table;
     }
 
-    public function createComparator(): RowLevelSecurityAwareComparator
+    public function createComparator(): Comparator
     {
-        return new RowLevelSecurityAwareComparator();
+        return new RowLevelSecurityAwareComparator($this->_platform);
     }
 }
diff --git a/src/RowLevelSecurityAwareTableDiff.php b/src/RowLevelSecurityAwareTableDiff.php
index ee8c766..39b816b 100644
--- a/src/RowLevelSecurityAwareTableDiff.php
+++ b/src/RowLevelSecurityAwareTableDiff.php
@@ -15,7 +15,7 @@ public function __construct(
         TableDiff $baseDiff,
     ) {
         parent::__construct(
-            $baseDiff->name,
+            $baseDiff->getOldTable()->getName(),
             $baseDiff->addedColumns,
             $baseDiff->changedColumns,
             $baseDiff->removedColumns,
@@ -37,7 +37,7 @@ public function getRowLevelSecuritySqls(): array
             $using = $this->addedRowLevelSecurity['using'] ?? '## TODO 手動設定要 ##';
             return $sqlFactory->createEnableSqls(
                 $this->addedRowLevelSecurity['name'],
-                $this->name,
+                $this->getOldTable()->getName(),
                 $this->addedRowLevelSecurity['role'],
                 $using,
             );
@@ -45,7 +45,7 @@ public function getRowLevelSecuritySqls(): array
         if ($this->removedRowLevelSecurity !== null) {
             return $sqlFactory->createDisableSqls(
                 $this->removedRowLevelSecurity['name'],
-                $this->name,
+                $this->getOldTable()->getName(),
             );
         }