diff --git a/composer.json b/composer.json
index fbcbe56f..187c9a0e 100644
--- a/composer.json
+++ b/composer.json
@@ -11,7 +11,7 @@
     "require": {
         "php": "^8.1",
         "doctrine/collections": "^1.8 || ^2.0",
-        "doctrine/dbal": "^3.6",
+        "doctrine/dbal": "^3.6 || ^4.0",
         "doctrine/event-manager": "^1.2 || ^2.0",
         "doctrine/orm": "^2.14 || ^3.0",
         "doctrine/persistence": "^3.0",
diff --git a/src/AuditReader.php b/src/AuditReader.php
index 482e1018..bd3ca09f 100644
--- a/src/AuditReader.php
+++ b/src/AuditReader.php
@@ -292,7 +292,7 @@ public function find($className, $id, $revision, array $options = [])
                 $allDiscrValues = array_flip($classMetadata->discriminatorMap);
                 $queriedDiscrValues = [$this->em->getConnection()->quote($classMetadata->discriminatorValue)];
                 foreach ($classMetadata->subClasses as $subclassName) {
-                    $queriedDiscrValues[] = $this->em->getConnection()->quote($allDiscrValues[$subclassName]);
+                    $queriedDiscrValues[] = $this->em->getConnection()->quote(strval($allDiscrValues[$subclassName]));
                 }
 
                 $whereSQL .= \sprintf(
diff --git a/src/EventListener/CreateSchemaListener.php b/src/EventListener/CreateSchemaListener.php
index c76329a3..b2fe8819 100644
--- a/src/EventListener/CreateSchemaListener.php
+++ b/src/EventListener/CreateSchemaListener.php
@@ -144,8 +144,25 @@ private function createForeignKeys(Table $relatedTable, Table $revisionsTable):
         $primaryKey = $revisionsTable->getPrimaryKey();
         \assert(null !== $primaryKey);
 
+        /**
+         * doctrine/dbal 3 support -- Table::addForeignKeyConstraint() takes a Table instead of a string
+         *
+         * NEXT_MAJOR: remove this `if` block
+         */
+        if (version_compare(\Composer\InstalledVersions::getVersion('doctrine/dbal') ?? '', '4.0.0', '<')) {
+            $relatedTable->addForeignKeyConstraint(
+                $revisionsTable, // @phpstan-ignore-line doctrine/dbal 3 support for old addForeignKeyConstraint() signature
+                [$this->config->getRevisionFieldName()],
+                $primaryKey->getColumns(),
+                [],
+                $revisionForeignKeyName
+            );
+
+            return;
+        }
+
         $relatedTable->addForeignKeyConstraint(
-            $revisionsTable,
+            $revisionsTable->getName(),
             [$this->config->getRevisionFieldName()],
             $primaryKey->getColumns(),
             [],
diff --git a/src/EventListener/LogRevisionsListener.php b/src/EventListener/LogRevisionsListener.php
index 4ed98432..67a4b0ed 100644
--- a/src/EventListener/LogRevisionsListener.php
+++ b/src/EventListener/LogRevisionsListener.php
@@ -16,6 +16,7 @@
 use Doctrine\Common\EventSubscriber;
 use Doctrine\DBAL\Connection;
 use Doctrine\DBAL\Exception;
+use Doctrine\DBAL\ParameterType;
 use Doctrine\DBAL\Types\Type;
 use Doctrine\DBAL\Types\Types;
 use Doctrine\ORM\EntityManagerInterface;
@@ -380,8 +381,16 @@ private function getRevisionId(Connection $conn)
             );
 
             $revisionId = $conn->lastInsertId();
-            if (false === $revisionId) {
-                throw new \RuntimeException('Unable to retrieve the last revision id.');
+            /**
+             * Preceding lastInsertId throws Doctrine\DBAL\Exception\DriverException on doctrine/dbal 4+, making the
+             * next check unnecessary.
+             *
+             * NEXT_MAJOR: Remove the following block
+             */
+            if (version_compare(\Composer\InstalledVersions::getVersion('doctrine/dbal') ?? '', '4.0.0', '<')) {
+                if (false === $revisionId) { // @phpstan-ignore-line doctrine/dbal 3 lastInsertId() can return false
+                    throw new \RuntimeException('Unable to retrieve the last revision id.');
+                }
             }
 
             $this->revisionId = $revisionId;
@@ -520,7 +529,7 @@ private function saveRevisionEntityData(EntityManagerInterface $em, ClassMetadat
         $conn = $em->getConnection();
 
         $params = [$this->getRevisionId($conn), $revType];
-        $types = [\PDO::PARAM_INT, \PDO::PARAM_STR];
+        $types = [ParameterType::INTEGER, ParameterType::STRING];
 
         $fields = [];
 
@@ -544,7 +553,7 @@ private function saveRevisionEntityData(EntityManagerInterface $em, ClassMetadat
                         $fields[$sourceColumn] = true;
                         if (null === $data) {
                             $params[] = null;
-                            $types[] = \PDO::PARAM_STR;
+                            $types[] = ParameterType::STRING;
                         } else {
                             $params[] = $relatedId[$targetClass->fieldNames[$targetColumn]] ?? null;
                             $types[] = $targetClass->getTypeOfField($targetClass->getFieldForColumn($targetColumn));
@@ -639,7 +648,7 @@ private function recordRevisionForManyToManyEntity(
     ): void {
         $conn = $em->getConnection();
         $joinTableParams = [$this->getRevisionId($conn), $revType];
-        $joinTableTypes = [\PDO::PARAM_INT, \PDO::PARAM_STR];
+        $joinTableTypes = [ParameterType::INTEGER, ParameterType::STRING];
 
         foreach (self::getRelationToSourceKeyColumns($assoc) as $targetColumn) {
             $joinTableParams[] = $entityData[$class->fieldNames[$targetColumn]];
diff --git a/tests/CoreTest.php b/tests/CoreTest.php
index b6078d31..22c419cb 100644
--- a/tests/CoreTest.php
+++ b/tests/CoreTest.php
@@ -14,7 +14,7 @@
 namespace Sonata\EntityAuditBundle\Tests;
 
 use Doctrine\DBAL\Exception\DriverException;
-use Doctrine\DBAL\Platforms\SqlitePlatform;
+use Doctrine\DBAL\Platforms\SQLitePlatform;
 use SimpleThings\EntityAudit\ChangedEntity;
 use SimpleThings\EntityAudit\Exception\NoRevisionFoundException;
 use SimpleThings\EntityAudit\Exception\NotAuditedException;
@@ -485,7 +485,7 @@ public function testRevisionForeignKeys(): void
     {
         $em = $this->getEntityManager();
 
-        $isSqlitePlatform = $em->getConnection()->getDatabasePlatform() instanceof SqlitePlatform;
+        $isSqlitePlatform = $em->getConnection()->getDatabasePlatform() instanceof SQLitePlatform;
         $updateForeignKeysConfig = false;
 
         if ($isSqlitePlatform) {
diff --git a/tests/Types/ConvertToPHPType.php b/tests/Types/ConvertToPHPType.php
index 5dc68f1b..af810241 100644
--- a/tests/Types/ConvertToPHPType.php
+++ b/tests/Types/ConvertToPHPType.php
@@ -28,12 +28,12 @@ public function canRequireSQLConversion(): bool
         return true;
     }
 
-    public function convertToPHPValueSQL($sqlExpr, $platform): string
+    public function convertToPHPValueSQL(string $sqlExpr, AbstractPlatform $platform): string
     {
         return \sprintf('UPPER(%s)', $sqlExpr);
     }
 
-    public function convertToDatabaseValueSQL($sqlExpr, AbstractPlatform $platform): string
+    public function convertToDatabaseValueSQL(string $sqlExpr, AbstractPlatform $platform): string
     {
         return \sprintf('LOWER(%s)', $sqlExpr);
     }
diff --git a/tests/Types/Issue196Type.php b/tests/Types/Issue196Type.php
index 9797569f..ad72e9ae 100644
--- a/tests/Types/Issue196Type.php
+++ b/tests/Types/Issue196Type.php
@@ -31,7 +31,7 @@ public function canRequireSQLConversion(): bool
         return true;
     }
 
-    public function convertToDatabaseValueSQL($sqlExpr, AbstractPlatform $platform): string
+    public function convertToDatabaseValueSQL(string $sqlExpr, AbstractPlatform $platform): string
     {
         return \sprintf('lower(%s)', $sqlExpr);
     }