diff --git a/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-09-26.sql b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-09-26.sql
new file mode 100644
index 0000000000000..80fcfacc284d2
--- /dev/null
+++ b/administrator/components/com_admin/sql/updates/mysql/4.0.0-2019-09-26.sql
@@ -0,0 +1,6 @@
+ALTER TABLE `#__privacy_requests` MODIFY `requested_at` datetime NOT NULL;
+ALTER TABLE `#__privacy_requests` MODIFY `confirm_token_created_at` datetime NOT NULL;
+
+ALTER TABLE `#__privacy_consents` MODIFY `created` datetime NOT NULL;
+
+UPDATE `#__privacy_requests` SET `confirm_token_created_at` = `requested_at` WHERE `confirm_token_created_at` = '0000-00-00 00:00:00';
diff --git a/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-09-26.sql b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-09-26.sql
new file mode 100644
index 0000000000000..3e4c75c183667
--- /dev/null
+++ b/administrator/components/com_admin/sql/updates/postgresql/4.0.0-2019-09-26.sql
@@ -0,0 +1,6 @@
+ALTER TABLE "#__privacy_requests" ALTER COLUMN "requested_at" DROP DEFAULT;
+ALTER TABLE "#__privacy_requests" ALTER COLUMN "confirm_token_created_at" DROP DEFAULT;
+
+ALTER TABLE "#__privacy_consents" ALTER COLUMN "created" DROP DEFAULT;
+
+UPDATE "#__privacy_requests" SET "confirm_token_created_at" = "requested_at" WHERE "confirm_token_created_at" = '1970-01-01 00:00:00';
diff --git a/administrator/components/com_privacy/Table/RequestTable.php b/administrator/components/com_privacy/Table/RequestTable.php
index 7b5256b18c222..692af2aa7d516 100644
--- a/administrator/components/com_privacy/Table/RequestTable.php
+++ b/administrator/components/com_privacy/Table/RequestTable.php
@@ -67,6 +67,11 @@ public function store($updateNulls = false)
 			{
 				$this->requested_at = $date->toSql();
 			}
+
+			if (!$this->confirm_token_created_at)
+			{
+				$this->confirm_token_created_at = $date->toSql();
+			}
 		}
 
 		return parent::store($updateNulls);
diff --git a/installation/sql/mysql/joomla.sql b/installation/sql/mysql/joomla.sql
index 9d069aca8e8fb..c02be56e4a337 100644
--- a/installation/sql/mysql/joomla.sql
+++ b/installation/sql/mysql/joomla.sql
@@ -1651,11 +1651,11 @@ SELECT extension_id, 'PLG_SYSTEM_HTTPHEADERS_POSTINSTALL_INTRODUCTION_TITLE', 'P
 CREATE TABLE IF NOT EXISTS `#__privacy_requests` (
   `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
   `email` varchar(100) NOT NULL DEFAULT '',
-  `requested_at` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
+  `requested_at` datetime NOT NULL,
   `status` tinyint(4) NOT NULL DEFAULT 0,
   `request_type` varchar(25) NOT NULL DEFAULT '',
   `confirm_token` varchar(100) NOT NULL DEFAULT '',
-  `confirm_token_created_at` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
+  `confirm_token_created_at` datetime NOT NULL,
   PRIMARY KEY (`id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 DEFAULT COLLATE=utf8mb4_unicode_ci;
 
@@ -1669,7 +1669,7 @@ CREATE TABLE IF NOT EXISTS `#__privacy_consents` (
   `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
   `user_id` int(10) unsigned NOT NULL DEFAULT 0,
   `state` INT(10) NOT NULL DEFAULT 1,
-  `created` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
+  `created` datetime NOT NULL,
   `subject` varchar(255) NOT NULL DEFAULT '',
   `body` text NOT NULL,
   `remind` tinyint(4) NOT NULL DEFAULT 0,
diff --git a/installation/sql/postgresql/joomla.sql b/installation/sql/postgresql/joomla.sql
index bac630c0aae34..a4c2aacfbd468 100644
--- a/installation/sql/postgresql/joomla.sql
+++ b/installation/sql/postgresql/joomla.sql
@@ -1656,11 +1656,11 @@ SELECT "extension_id", 'PLG_SYSTEM_HTTPHEADERS_POSTINSTALL_INTRODUCTION_TITLE',
 CREATE TABLE "#__privacy_requests" (
   "id" serial NOT NULL,
   "email" varchar(100) DEFAULT '' NOT NULL,
-  "requested_at" timestamp without time zone DEFAULT '1970-01-01 00:00:00' NOT NULL,
+  "requested_at" timestamp without time zone NOT NULL,
   "status" smallint DEFAULT 0 NOT NULL,
   "request_type" varchar(25) DEFAULT '' NOT NULL,
   "confirm_token" varchar(100) DEFAULT '' NOT NULL,
-  "confirm_token_created_at" timestamp without time zone DEFAULT '1970-01-01 00:00:00' NOT NULL,
+  "confirm_token_created_at" timestamp without time zone NOT NULL,
   PRIMARY KEY ("id")
 );
 
@@ -1672,7 +1672,7 @@ CREATE TABLE "#__privacy_consents" (
   "id" serial NOT NULL,
   "user_id" bigint DEFAULT 0 NOT NULL,
   "state" smallint DEFAULT 1 NOT NULL,
-  "created" timestamp without time zone DEFAULT '1970-01-01 00:00:00' NOT NULL,
+  "created" timestamp without time zone NOT NULL,
   "subject" varchar(255) DEFAULT '' NOT NULL,
   "body" text NOT NULL,
   "remind" smallint DEFAULT 0 NOT NULL,