diff --git a/src/Form/Type/PasteForm.php b/src/Form/Type/PasteForm.php
index 8485aef..e1481ce 100644
--- a/src/Form/Type/PasteForm.php
+++ b/src/Form/Type/PasteForm.php
@@ -33,7 +33,7 @@ class PasteForm extends AbstractType
             ->add('expirationDate', DateTimeType::class, [
                 'required' => false, 
                 'date_widget' => 'single_text', 
-                'input' => 'datetime',
+                'input' => 'datetime_immutable',
                 ]
             )
             ->add('private', CheckboxType::class, ['required' => false])