diff --git a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-07-02.sql b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-07-02.sql
index 4ea972d146b98..c676f42bbcc6d 100644
--- a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-07-02.sql
+++ b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-07-02.sql
@@ -10,4 +10,4 @@ CREATE TABLE IF NOT EXISTS `#__webauthn_credentials` (
   DEFAULT COLLATE = utf8mb4_unicode_ci;
 
 INSERT INTO `#__extensions` (`package_id`, `name`, `type`, `element`, `folder`, `client_id`, `enabled`, `access`, `protected`, `manifest_cache`, `params`, `checked_out`, `checked_out_time`, `ordering`, `state`) VALUES
-(0, 'plg_system_webauthn', 'plugin', 'webauthn', 'system', 0, 1, 1, 0, '', '{}', 0, NULL, 0, 0);
+(0, 'plg_system_webauthn', 'plugin', 'webauthn', 'system', 0, 1, 1, 0, '', '{}', 0, '0000-00-00 00:00:00', 0, 0);
diff --git a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-07-02.sql b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-07-02.sql
index 908506bd93d06..9003b69b1eb07 100644
--- a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-07-02.sql
+++ b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-07-02.sql
@@ -9,4 +9,4 @@ CREATE TABLE IF NOT EXISTS "#__webauthn_credentials" (
 CREATE INDEX "#__webauthn_credentials_user_id" ON "#__webauthn_credentials" ("user_id");
 
 INSERT INTO "#__extensions" ("package_id", "name", "type", "element", "folder", "client_id", "enabled", "access", "protected", "manifest_cache", "params", "checked_out", "checked_out_time", "ordering", "state") VALUES
-(0, 'plg_system_webauthn', 'plugin', 'webauthn', 'system', 0, 1, 1, 0, '', '{}', 0, NULL, 8, 0);
+(0, 'plg_system_webauthn', 'plugin', 'webauthn', 'system', 0, 1, 1, 0, '', '{}', 0, '1970-01-01 00:00:00', 8, 0);