diff --git a/src/Client.php b/src/Client.php
index 2ebade5..d6a723a 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -225,6 +225,14 @@ public function updateIndexSettings(string $target, array $body = null): Promise
         return $this->doJsonRequest($method, $uri, $body);
     }
 
+    public function updateMappings(string $target, array $body = null): Promise
+    {
+        $method = 'PUT';
+        $uri = implode('/', [$this->baseUri, urlencode($target), '_mappings']);
+
+        return $this->doJsonRequest($method, $uri, $body);
+    }
+
     private function createJsonRequest(string $method, string $uri, string $body = null): Request
     {
         $request = new Request($uri, $method);
diff --git a/tests/Integration/ClientTest.php b/tests/Integration/ClientTest.php
index 2c08f1f..03d33b9 100644
--- a/tests/Integration/ClientTest.php
+++ b/tests/Integration/ClientTest.php
@@ -370,4 +370,18 @@ public function testUpdateIndexSettings(): void
         $response = Promise\wait($this->client->getIndex(self::TEST_INDEX));
         $this->assertEquals(2000, $response[self::TEST_INDEX]['settings']['index']['mapping']['total_fields']['limit']);
     }
+
+    public function testUpdateMappings(): void
+    {
+        Promise\wait($this->client->createIndex(self::TEST_INDEX));
+
+        $response = Promise\wait(
+            $this->client->updateMappings(self::TEST_INDEX, ['properties' => ['testField' => ['type' => 'text']]])
+        );
+
+        $this->assertIsArray($response);
+        $this->assertTrue($response['acknowledged']);
+        $response = Promise\wait($this->client->getIndex(self::TEST_INDEX));
+        $this->assertEquals('text', $response[self::TEST_INDEX]['mappings']['properties']['testField']['type']);
+    }
 }