diff --git a/composer.json b/composer.json
index cae9b1c..4b5bf5f 100644
--- a/composer.json
+++ b/composer.json
@@ -12,7 +12,7 @@
   ],
   "type": "library",
   "require": {
-    "php": ">=8.2",
+    "php": ">=8.1",
     "ext-bcmath": "*",
     "ext-json": "*",
     "ext-sockets": "*",
diff --git a/src/MySQLReplication/BinLog/BinLogServerInfo.php b/src/MySQLReplication/BinLog/BinLogServerInfo.php
index fbd7704..4627f32 100644
--- a/src/MySQLReplication/BinLog/BinLogServerInfo.php
+++ b/src/MySQLReplication/BinLog/BinLogServerInfo.php
@@ -6,7 +6,7 @@
 
 use MySQLReplication\BinaryDataReader\BinaryDataReader;
 
-readonly class BinLogServerInfo
+class BinLogServerInfo
 {
     private const MYSQL_VERSION_MARIADB = 'MariaDB';
     private const MYSQL_VERSION_PERCONA = 'Percona';
diff --git a/src/MySQLReplication/Config/Config.php b/src/MySQLReplication/Config/Config.php
index e37e65f..4c3fd47 100644
--- a/src/MySQLReplication/Config/Config.php
+++ b/src/MySQLReplication/Config/Config.php
@@ -6,7 +6,7 @@
 
 use JsonSerializable;
 
-readonly class Config implements JsonSerializable
+class Config implements JsonSerializable
 {
     public function __construct(
         public string $user,
diff --git a/src/MySQLReplication/Event/Event.php b/src/MySQLReplication/Event/Event.php
index 25f519d..a1cf11f 100644
--- a/src/MySQLReplication/Event/Event.php
+++ b/src/MySQLReplication/Event/Event.php
@@ -17,7 +17,7 @@
 use Psr\SimpleCache\CacheInterface;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
 
-readonly class Event
+class Event
 {
     private const MARIADB_DUMMY_QUERY = '# Dum';
 
diff --git a/src/MySQLReplication/Event/RowEvent/ColumnDTO.php b/src/MySQLReplication/Event/RowEvent/ColumnDTO.php
index a0cad6d..f4b529c 100644
--- a/src/MySQLReplication/Event/RowEvent/ColumnDTO.php
+++ b/src/MySQLReplication/Event/RowEvent/ColumnDTO.php
@@ -9,7 +9,7 @@
 use MySQLReplication\Definitions\ConstFieldType;
 use MySQLReplication\Repository\FieldDTO;
 
-readonly class ColumnDTO implements JsonSerializable
+class ColumnDTO implements JsonSerializable
 {
     public function __construct(
         public FieldDTO $fieldDTO,
diff --git a/src/MySQLReplication/Event/RowEvent/RowEventFactory.php b/src/MySQLReplication/Event/RowEvent/RowEventFactory.php
index ca1b8c6..822292e 100644
--- a/src/MySQLReplication/Event/RowEvent/RowEventFactory.php
+++ b/src/MySQLReplication/Event/RowEvent/RowEventFactory.php
@@ -7,7 +7,7 @@
 use MySQLReplication\BinaryDataReader\BinaryDataReader;
 use MySQLReplication\Event\EventInfo;
 
-readonly class RowEventFactory
+class RowEventFactory
 {
     public function __construct(
         private RowEventBuilder $rowEventBuilder
diff --git a/src/MySQLReplication/Event/RowEvent/TableMap.php b/src/MySQLReplication/Event/RowEvent/TableMap.php
index 5ceffad..1070ca2 100644
--- a/src/MySQLReplication/Event/RowEvent/TableMap.php
+++ b/src/MySQLReplication/Event/RowEvent/TableMap.php
@@ -6,7 +6,7 @@
 
 use JsonSerializable;
 
-readonly class TableMap implements JsonSerializable
+class TableMap implements JsonSerializable
 {
     public function __construct(
         public string $database,
diff --git a/src/MySQLReplication/Event/RowEvent/TableMapCache.php b/src/MySQLReplication/Event/RowEvent/TableMapCache.php
index 541b092..6e114ad 100644
--- a/src/MySQLReplication/Event/RowEvent/TableMapCache.php
+++ b/src/MySQLReplication/Event/RowEvent/TableMapCache.php
@@ -6,7 +6,7 @@
 
 use Psr\SimpleCache\CacheInterface;
 
-readonly class TableMapCache
+class TableMapCache
 {
     public function __construct(
         private CacheInterface $cache
diff --git a/src/MySQLReplication/JsonBinaryDecoder/JsonBinaryDecoderService.php b/src/MySQLReplication/JsonBinaryDecoder/JsonBinaryDecoderService.php
index d669ef4..52480fd 100644
--- a/src/MySQLReplication/JsonBinaryDecoder/JsonBinaryDecoderService.php
+++ b/src/MySQLReplication/JsonBinaryDecoder/JsonBinaryDecoderService.php
@@ -13,7 +13,7 @@
  * @see https://github.com/mysql/mysql-server/blob/8.0/sql/json_binary.cc
  * @see https://github.com/shyiko/mysql-binlog-connector-java/blob/master/src/main/java/com/github/shyiko/mysql/binlog/event/deserialization/json/JsonBinary.java
  */
-readonly class JsonBinaryDecoderService
+class JsonBinaryDecoderService
 {
     public const SMALL_OBJECT = 0;
 
diff --git a/src/MySQLReplication/JsonBinaryDecoder/JsonBinaryDecoderValue.php b/src/MySQLReplication/JsonBinaryDecoder/JsonBinaryDecoderValue.php
index 8980528..84cb177 100644
--- a/src/MySQLReplication/JsonBinaryDecoder/JsonBinaryDecoderValue.php
+++ b/src/MySQLReplication/JsonBinaryDecoder/JsonBinaryDecoderValue.php
@@ -4,7 +4,7 @@
 
 namespace MySQLReplication\JsonBinaryDecoder;
 
-readonly class JsonBinaryDecoderValue
+class JsonBinaryDecoderValue
 {
     public function __construct(
         public bool $isResolved,
diff --git a/src/MySQLReplication/Repository/FieldDTO.php b/src/MySQLReplication/Repository/FieldDTO.php
index 27bf5f2..d0192c7 100644
--- a/src/MySQLReplication/Repository/FieldDTO.php
+++ b/src/MySQLReplication/Repository/FieldDTO.php
@@ -4,7 +4,7 @@
 
 namespace MySQLReplication\Repository;
 
-readonly class FieldDTO
+class FieldDTO
 {
     public function __construct(
         public string $columnName,
diff --git a/src/MySQLReplication/Repository/MasterStatusDTO.php b/src/MySQLReplication/Repository/MasterStatusDTO.php
index 1e20ecd..b4aed9d 100644
--- a/src/MySQLReplication/Repository/MasterStatusDTO.php
+++ b/src/MySQLReplication/Repository/MasterStatusDTO.php
@@ -4,7 +4,7 @@
 
 namespace MySQLReplication\Repository;
 
-readonly class MasterStatusDTO
+class MasterStatusDTO
 {
     public function __construct(
         public string $position,
diff --git a/src/MySQLReplication/Repository/MySQLRepository.php b/src/MySQLReplication/Repository/MySQLRepository.php
index ee7a779..c841c17 100644
--- a/src/MySQLReplication/Repository/MySQLRepository.php
+++ b/src/MySQLReplication/Repository/MySQLRepository.php
@@ -9,7 +9,7 @@
 use MySQLReplication\BinLog\BinLogException;
 use MySQLReplication\Exception\MySQLReplicationException;
 
-readonly class MySQLRepository implements RepositoryInterface, PingableConnection
+class MySQLRepository implements RepositoryInterface, PingableConnection
 {
     public function __construct(
         private Connection $connection