diff --git a/src/Config/Database/DbConfig.php b/src/Config/Database/DbConfig.php
index 0195cbd378..9dd2be19ce 100644
--- a/src/Config/Database/DbConfig.php
+++ b/src/Config/Database/DbConfig.php
@@ -35,6 +35,7 @@ class DbConfig implements ConfigInterface
     const KEY_ENGINE = 'engine';
     const KEY_INIT_STATEMENTS = 'initStatements';
     const KEY_ACTIVE = 'active';
+    const KEY_SYNCHRONOUS_REPLICATION = 'synchronous_replication';
 
     /**
      * Names of connections
@@ -195,6 +196,7 @@ private function collectEnvConfig(array $customDbConfig): array
             }
             $mageConnectionConfig = $this->convertToMageFormat($slaveConnectionData, true);
             $config[self::KEY_SLAVE_CONNECTION][$mageConnectionName] = $mageConnectionConfig;
+            $config[self::KEY_SLAVE_CONNECTION][$mageConnectionName][self::KEY_SYNCHRONOUS_REPLICATION] = true;
         }
         return $config;
     }
diff --git a/src/Test/Unit/Config/Database/DbConfigTest.php b/src/Test/Unit/Config/Database/DbConfigTest.php
index bfd778737c..50948bd8d7 100644
--- a/src/Test/Unit/Config/Database/DbConfigTest.php
+++ b/src/Test/Unit/Config/Database/DbConfigTest.php
@@ -317,6 +317,7 @@ public function getDataProvider()
                             'engine' => 'innodb',
                             'initStatements' => 'SET NAMES utf8;',
                             'active' => '1',
+                            'synchronous_replication' => true,
                         ],
                     ],
                 ],
@@ -342,6 +343,7 @@ public function getDataProvider()
                             'engine' => 'innodb',
                             'initStatements' => 'SET NAMES utf8;',
                             'active' => '1',
+                            'synchronous_replication' => true,
                         ],
                     ],
                 ],
@@ -495,6 +497,7 @@ public function getDataProvider()
                             'engine' => 'innodb',
                             'initStatements' => 'SET NAMES utf8;',
                             'active' => '1',
+                            'synchronous_replication' => true,
                         ],
                     ],
                 ],
@@ -616,6 +619,7 @@ public function getDataProvider()
                             'engine' => 'innodb',
                             'initStatements' => 'SET NAMES utf8;',
                             'active' => '1',
+                            'synchronous_replication' => true,
                         ],
                     ],
                 ],
@@ -759,6 +763,7 @@ public function getDataProvider()
                             'engine' => 'innodb',
                             'initStatements' => 'SET NAMES utf8;',
                             'active' => '1',
+                            'synchronous_replication' => true,
                         ],
                         'checkout' => [
                             'host' => 'some_host_quote_slave:3310',
@@ -769,6 +774,7 @@ public function getDataProvider()
                             'engine' => 'innodb',
                             'initStatements' => 'SET NAMES utf8;',
                             'active' => '1',
+                            'synchronous_replication' => true,
                         ],
                         'sales' => [
                             'host' => 'some_host_sales_slave:3311',
@@ -779,6 +785,7 @@ public function getDataProvider()
                             'engine' => 'innodb',
                             'initStatements' => 'SET NAMES utf8;',
                             'active' => '1',
+                            'synchronous_replication' => true,
                         ],
                     ],
                 ],
@@ -977,6 +984,7 @@ public function getDataProvider()
                             'engine' => 'innodb',
                             'initStatements' => 'SET NAMES utf8;',
                             'active' => '1',
+                            'synchronous_replication' => true,
                         ],
                         'sales' => ['host' => 'some_host_sales_slave:3311',
                             'username' => 'some_username_sales_slave',
@@ -986,6 +994,7 @@ public function getDataProvider()
                             'engine' => 'innodb',
                             'initStatements' => 'SET NAMES utf8;',
                             'active' => '1',
+                            'synchronous_replication' => true,
                         ],
                     ],
                 ],