diff --git a/tine20/GDPR/Setup/Update/18.php b/tine20/GDPR/Setup/Update/18.php
index 6a0733325a3..5e3767a6db5 100644
--- a/tine20/GDPR/Setup/Update/18.php
+++ b/tine20/GDPR/Setup/Update/18.php
@@ -14,6 +14,7 @@
 class GDPR_Setup_Update_18 extends Setup_Update_Abstract
 {
     protected const RELEASE018_UPDATE000 = __CLASS__ . '::update000';
+    protected const RELEASE018_UPDATE001 = __CLASS__ . '::update001';
 
     static protected $_allUpdates = [
         self::PRIO_NORMAL_APP_UPDATE        => [
@@ -21,6 +22,10 @@ class GDPR_Setup_Update_18 extends Setup_Update_Abstract
                 self::CLASS_CONST                   => self::class,
                 self::FUNCTION_CONST                => 'update000',
             ],
+            self::RELEASE018_UPDATE001          => [
+                self::CLASS_CONST                   => self::class,
+                self::FUNCTION_CONST                => 'update001',
+            ],
         ],
     ];
 
@@ -28,4 +33,21 @@ public function update000(): void
     {
         $this->addApplicationUpdate(GDPR_Config::APP_NAME, '18.0', self::RELEASE018_UPDATE000);
     }
+
+    public function update001(): void
+    {
+        Tinebase_TransactionManager::getInstance()->rollBack();
+
+        $this->getDb()->update(
+            SQL_TABLE_PREFIX . GDPR_Model_DataIntendedPurpose::TABLE_NAME,
+            [GDPR_Model_DataIntendedPurpose::FLD_IS_SELF_REGISTRATION => 0],
+            '`is_self_registration` is null'
+        );
+        $this->getDb()->update(
+            SQL_TABLE_PREFIX . GDPR_Model_DataIntendedPurpose::TABLE_NAME,
+            [GDPR_Model_DataIntendedPurpose::FLD_IS_SELF_SERVICE => 0],
+            '`is_self_service` is null'
+        );
+        $this->addApplicationUpdate(GDPR_Config::APP_NAME, '18.1', self::RELEASE018_UPDATE001);
+    }
 }
diff --git a/tine20/GDPR/Setup/setup.xml b/tine20/GDPR/Setup/setup.xml
index 876767b1da3..dd298919a71 100644
--- a/tine20/GDPR/Setup/setup.xml
+++ b/tine20/GDPR/Setup/setup.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <application>
     <name>GDPR</name>
-    <version>18.0</version>
+    <version>18.1</version>
     <order>80</order>
     <depends>
         <application>CoreData</application>