diff --git a/CHANGELOG.md b/CHANGELOG.md
index 758b826..e301a86 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ Updates should follow the [Keep a CHANGELOG](http://keepachangelog.com/) princip
 - Add `IdentificationResult` claims
 - Add `IdentificationsEndpoint.updateResult`
 - Add `SignatureScenarioVariant.signDocumentsAtOnce`
+- Add `EnvelopeTagsEndpoint.updateValues` endpoint
 
 ## [2.3.0] - 2024-03-28
 ### Added
diff --git a/src/Endpoint/EnvelopeTagsEndpoint.php b/src/Endpoint/EnvelopeTagsEndpoint.php
index 3e303bc..93b1b68 100644
--- a/src/Endpoint/EnvelopeTagsEndpoint.php
+++ b/src/Endpoint/EnvelopeTagsEndpoint.php
@@ -23,4 +23,12 @@ public function __construct(EnvelopesEndpoint $parent, Envelope|string $envelope
     {
         parent::__construct($parent, '/{envelope}/tags', EnvelopeTag::class, ['envelope' => $envelope]);
     }
+
+    /**
+     * @param mixed[] $body
+     */
+    public function updateValues(array $body): void
+    {
+        $this->putRequest('/values', ['json' => $body]);
+    }
 }
diff --git a/tests/Endpoint/EnvelopeTagsEndpointTest.php b/tests/Endpoint/EnvelopeTagsEndpointTest.php
index 428e9c5..c9dbeb2 100644
--- a/tests/Endpoint/EnvelopeTagsEndpointTest.php
+++ b/tests/Endpoint/EnvelopeTagsEndpointTest.php
@@ -14,6 +14,12 @@ public function testCRUD(): void
         self::assertCrudRequests(self::endpoint(), '/api/envelopes/bar/tags');
     }
 
+    public function testUpdateValues(): void
+    {
+        self::endpoint()->updateValues(['foo' => 'bar']);
+        self::assertLastRequest('PUT', '/api/envelopes/bar/tags/values', ['foo' => 'bar']);
+    }
+
     protected static function endpoint(): EnvelopeTagsEndpoint
     {
         return self::dgs()->envelopes()->tags('bar');