diff --git a/Classes/Domain/Model/WorkspaceDetails.php b/Classes/Domain/Model/WorkspaceDetails.php
index e161267..2c44b77 100644
--- a/Classes/Domain/Model/WorkspaceDetails.php
+++ b/Classes/Domain/Model/WorkspaceDetails.php
@@ -40,6 +40,7 @@ class WorkspaceDetails
 
     /**
      * @ORM\OneToOne
+     * @ORM\JoinColumn(onDelete="CASCADE")
      * @Flow\Identity
      * @var Workspace
      */
diff --git a/Migrations/Mysql/Version20240108102400.php b/Migrations/Mysql/Version20240108102400.php
new file mode 100644
index 0000000..9c15174
--- /dev/null
+++ b/Migrations/Mysql/Version20240108102400.php
@@ -0,0 +1,32 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Neos\Flow\Persistence\Doctrine\Migrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20240108102400 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Delete workspace details when user including their workspaces are deleted';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'mysql', 'Migration can only be executed safely on \'mysql\'.');
+
+        $this->addSql('ALTER TABLE shel_neos_workspacemodule_domain_model_workspacedetails DROP FOREIGN KEY FK_923CCEA8D940019');
+        $this->addSql('ALTER TABLE shel_neos_workspacemodule_domain_model_workspacedetails ADD CONSTRAINT FK_923CCEA8D940019 FOREIGN KEY (workspace) REFERENCES neos_contentrepository_domain_model_workspace (name) ON DELETE CASCADE');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'mysql', 'Migration can only be executed safely on \'mysql\'.');
+
+        $this->addSql('ALTER TABLE shel_neos_workspacemodule_domain_model_workspacedetails DROP FOREIGN KEY FK_923CCEA8D940019');
+        $this->addSql('ALTER TABLE shel_neos_workspacemodule_domain_model_workspacedetails ADD CONSTRAINT FK_923CCEA8D940019 FOREIGN KEY (workspace) REFERENCES neos_contentrepository_domain_model_workspace (name)');
+    }
+}
diff --git a/Migrations/Postgresql/Version20240108102821.php b/Migrations/Postgresql/Version20240108102821.php
new file mode 100644
index 0000000..11e211e
--- /dev/null
+++ b/Migrations/Postgresql/Version20240108102821.php
@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Neos\Flow\Persistence\Doctrine\Migrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20240108102821 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Delete workspace details when user including their workspaces are deleted';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'postgresql', 'Migration can only be executed safely on "postgresql".');
+
+        $this->addSql('ALTER TABLE shel_neos_workspacemodule_domain_model_workspacedetails DROP CONSTRAINT FK_923CCEA8D940019');
+        $this->addSql('ALTER TABLE shel_neos_workspacemodule_domain_model_workspacedetails ALTER workspace DROP NOT NULL');
+        $this->addSql('ALTER TABLE shel_neos_workspacemodule_domain_model_workspacedetails ADD CONSTRAINT FK_923CCEA8D940019 FOREIGN KEY (workspace) REFERENCES neos_contentrepository_domain_model_workspace (name) ON DELETE CASCADE NOT DEFERRABLE INITIALLY IMMEDIATE');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->abortIf($this->connection->getDatabasePlatform()->getName() !== 'postgresql', 'Migration can only be executed safely on "postgresql".');
+
+        $this->addSql('ALTER TABLE shel_neos_workspacemodule_domain_model_workspacedetails DROP CONSTRAINT fk_923ccea8d940019');
+        $this->addSql('ALTER TABLE shel_neos_workspacemodule_domain_model_workspacedetails ALTER workspace SET NOT NULL');
+        $this->addSql('ALTER TABLE shel_neos_workspacemodule_domain_model_workspacedetails ADD CONSTRAINT fk_923ccea8d940019 FOREIGN KEY (workspace) REFERENCES neos_contentrepository_domain_model_workspace (name) NOT DEFERRABLE INITIALLY IMMEDIATE');
+    }
+}