diff --git a/composer.json b/composer.json
index 17c8b0de..91389eb8 100644
--- a/composer.json
+++ b/composer.json
@@ -152,6 +152,9 @@
             "drupal/core": {
               "migrate_drupal getsetting on null" : "https://www.drupal.org/files/issues/2019-02-13/migrate_drupal-getsetting_on_null.patch"
             },
+            "drupal/core": {
+              "language negociation exeption https://www.drupal.org/project/drupal/issues/3134349" : "https://www.drupal.org/files/issues/2020-06-02/3134349-9.patch"
+            },
             "drupal/email_registration": {
               "allow email login through REST https://www.drupal.org/project/email_registration/issues/2856542": "https://www.drupal.org/files/issues/allow_authentication-2856542-3.patch"
             },