diff --git a/lib/Doctrine/CouchDB/CouchDBClient.php b/lib/Doctrine/CouchDB/CouchDBClient.php
index 91fa53c..9e2bf67 100644
--- a/lib/Doctrine/CouchDB/CouchDBClient.php
+++ b/lib/Doctrine/CouchDB/CouchDBClient.php
@@ -576,6 +576,21 @@ public function createDesignDocument($designDocName, DesignDocument $designDoc)
         );
     }
 
+    /**
+     * https://docs.couchdb.org/en/stable/api/database/security.html
+     */
+    public function putSecurityDocument(SecurityDocument $securityDoc)
+    {
+        $data = $securityDoc->getData();
+
+        $path = '/' . $this->databaseName . '/_security';
+        $response = $this->httpClient->request('PUT', $path, json_encode($data));
+
+        if ($response->status != 200 || !$response->body['ok']) {
+            throw HTTPException::fromResponse($path, $response);
+        }
+    }
+
     /**
      * GET /db/_compact.
      *
diff --git a/lib/Doctrine/CouchDB/SecurityDocument.php b/lib/Doctrine/CouchDB/SecurityDocument.php
new file mode 100644
index 0000000..07f4237
--- /dev/null
+++ b/lib/Doctrine/CouchDB/SecurityDocument.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace Doctrine\CouchDB;
+
+class SecurityDocument
+{
+    /**
+     * @var array
+     */
+    private $data = [];
+
+    public function getData()
+    {
+        return $this->data;
+    }
+
+    public function addAdminName($name)
+    {
+        $this->addEntry('admins', 'names', $name);
+    }
+
+    public function addAdminRole($role)
+    {
+        $this->addEntry('admins', 'roles', $name);
+    }
+
+    public function addMemberName($name)
+    {
+        $this->addEntry('members', 'names', $name);
+    }
+
+    public function addMemberRole($role)
+    {
+        $this->addEntry('members', 'roles', $name);
+    }
+
+    private function addEntry($role, $type, $val)
+    {
+        if (!isset($this->data[$role][$type])) {
+            $this->data[$role][$type] = [];
+        }
+        $this->data[$role][$type][] = $val;
+    }
+}