diff --git a/core/modules/filter/config/filter.format.plain_text.yml b/core/modules/filter/config/filter.format.plain_text.yml
index 8ce9548..586e28d 100644
--- a/core/modules/filter/config/filter.format.plain_text.yml
+++ b/core/modules/filter/config/filter.format.plain_text.yml
@@ -30,4 +30,4 @@ filters:
     status: '1'
     weight: '0'
     settings: {  }
-langcode: und
+langcode: en
diff --git a/core/profiles/standard/config/filter.format.basic_html.yml b/core/profiles/standard/config/filter.format.basic_html.yml
index 8685b20..5810786 100644
--- a/core/profiles/standard/config/filter.format.basic_html.yml
+++ b/core/profiles/standard/config/filter.format.basic_html.yml
@@ -24,4 +24,4 @@ filters:
     status: '1'
     weight: '10'
     settings: {  }
-langcode: und
+langcode: en