diff --git a/templates/settings.docker.php.twig b/templates/settings.docker.php.twig
index cf3dcadc18f78e8403fcd69a7f6115b68779ea6a..3cb6b49cf1deb0b06e6ba77e92d161856ce6d40d 100644
--- a/templates/settings.docker.php.twig
+++ b/templates/settings.docker.php.twig
@@ -25,6 +25,8 @@ $databases = array(
       'host' => 'mariadb',
       'port' => '3306',
       'prefix' => '',
+      'charset' => 'utf8mb4',
+      'collation' => 'utf8mb4_general_ci',
       'init_commands' => [
         'isolation_level' => 'SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED',
       ],
@@ -53,6 +55,8 @@ $databases = array(
       'password' => 'drupal',
       'database' => 'drupal',
       'prefix' => '',
+      'charset' => 'utf8mb4',
+      'collation' => 'utf8mb4_general_ci',
       'init_commands' => [
         'isolation_level' => 'SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED',
       ],