diff --git a/src/Collector.php b/src/Collector.php
index 676bfd1..e99cfe5 100644
--- a/src/Collector.php
+++ b/src/Collector.php
@@ -107,4 +107,12 @@ public static function counter(): self
     {
         return new self(CollectorType::Counter);
     }
+
+    /**
+     * New summary metric.
+     */
+    public static function summary(): self
+    {
+        return new self(CollectorType::Summary);
+    }
 }
diff --git a/src/CollectorType.php b/src/CollectorType.php
index 21f5ba0..71de029 100644
--- a/src/CollectorType.php
+++ b/src/CollectorType.php
@@ -9,4 +9,5 @@ enum CollectorType: string
     case Histogram = 'histogram';
     case Gauge = 'gauge';
     case Counter = 'counter';
+    case Summary = 'summary';
 }
diff --git a/tests/Unit/CollectorTest.php b/tests/Unit/CollectorTest.php
index dfc4a58..3c6e0f0 100644
--- a/tests/Unit/CollectorTest.php
+++ b/tests/Unit/CollectorTest.php
@@ -74,6 +74,14 @@ public function testCounter(): void
         $this->assertSame([], $collector->toArray()['buckets']);
     }
 
+    public function testSummary(): void
+    {
+        $collector = Collector::summary();
+
+        $this->assertSame(CollectorType::Summary, $collector->type);
+        $this->assertSame([], $collector->toArray()['buckets']);
+    }
+
     public function testWithNamespace(): void
     {
         $collector = Collector::counter();