diff --git a/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/AudioUpdateBlock.cs b/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/AudioUpdateBlock.cs
new file mode 100644
index 00000000..f341e441
--- /dev/null
+++ b/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/AudioUpdateBlock.cs
@@ -0,0 +1,10 @@
+using Newtonsoft.Json;
+
+namespace Notion.Client
+{
+    public class AudioUpdateBlock : UpdateBlock, IUpdateBlock
+    {
+        [JsonProperty("audio")]
+        public IFileObjectInput Audio { get; set; }
+    }
+}
diff --git a/Src/Notion.Client/Models/Blocks/AudioBlock.cs b/Src/Notion.Client/Models/Blocks/AudioBlock.cs
new file mode 100644
index 00000000..b43bbc9c
--- /dev/null
+++ b/Src/Notion.Client/Models/Blocks/AudioBlock.cs
@@ -0,0 +1,12 @@
+using Newtonsoft.Json;
+
+namespace Notion.Client
+{
+    public class AudioBlock : Block
+    {
+        public override BlockType Type => BlockType.Audio;
+
+        [JsonProperty("audio")]
+        public FileObject Audio { get; set; }
+    }
+}
diff --git a/Src/Notion.Client/Models/Blocks/Block.cs b/Src/Notion.Client/Models/Blocks/Block.cs
index 34c3b7b6..2f34d5d4 100644
--- a/Src/Notion.Client/Models/Blocks/Block.cs
+++ b/Src/Notion.Client/Models/Blocks/Block.cs
@@ -5,6 +5,7 @@
 namespace Notion.Client
 {
     [JsonConverter(typeof(JsonSubtypes), "type")]
+    [JsonSubtypes.KnownSubType(typeof(AudioBlock), BlockType.Audio)]
     [JsonSubtypes.KnownSubType(typeof(BookmarkBlock), BlockType.Bookmark)]
     [JsonSubtypes.KnownSubType(typeof(BulletedListItemBlock), BlockType.BulletedListItem)]
     [JsonSubtypes.KnownSubType(typeof(ChildPageBlock), BlockType.ChildPage)]
diff --git a/Src/Notion.Client/Models/Blocks/BlockType.cs b/Src/Notion.Client/Models/Blocks/BlockType.cs
index 7a29fbe9..75d3a671 100644
--- a/Src/Notion.Client/Models/Blocks/BlockType.cs
+++ b/Src/Notion.Client/Models/Blocks/BlockType.cs
@@ -64,6 +64,9 @@ public enum BlockType
         [EnumMember(Value = "divider")]
         Divider,
 
+        [EnumMember(Value = "audio")]
+        Audio,
+
         [EnumMember(Value = "unsupported")]
         Unsupported
     }
diff --git a/Src/Notion.Client/Models/File/FIleInput/ExternalFileInput.cs b/Src/Notion.Client/Models/File/FIleInput/ExternalFileInput.cs
new file mode 100644
index 00000000..9c258ceb
--- /dev/null
+++ b/Src/Notion.Client/Models/File/FIleInput/ExternalFileInput.cs
@@ -0,0 +1,16 @@
+using Newtonsoft.Json;
+
+namespace Notion.Client
+{
+    public class ExternalFileInput : IFileObjectInput
+    {
+        [JsonProperty("external")]
+        public Data External { get; set; }
+
+        public class Data
+        {
+            [JsonProperty("url")]
+            public string Url { get; set; }
+        }
+    }
+}
diff --git a/Src/Notion.Client/Models/File/FIleInput/IFileObjectInput.cs b/Src/Notion.Client/Models/File/FIleInput/IFileObjectInput.cs
new file mode 100644
index 00000000..31df1573
--- /dev/null
+++ b/Src/Notion.Client/Models/File/FIleInput/IFileObjectInput.cs
@@ -0,0 +1,6 @@
+namespace Notion.Client
+{
+    public interface IFileObjectInput
+    {
+    }
+}
diff --git a/Src/Notion.Client/Models/File/FIleInput/UploadedFileInput.cs b/Src/Notion.Client/Models/File/FIleInput/UploadedFileInput.cs
new file mode 100644
index 00000000..52d7934d
--- /dev/null
+++ b/Src/Notion.Client/Models/File/FIleInput/UploadedFileInput.cs
@@ -0,0 +1,20 @@
+using System;
+using Newtonsoft.Json;
+
+namespace Notion.Client
+{
+    public class UploadedFileInput : IFileObjectInput
+    {
+        [JsonProperty("file")]
+        public Data File { get; set; }
+
+        public class Data
+        {
+            [JsonProperty("url")]
+            public string Url { get; set; }
+
+            [JsonProperty("expiry_time")]
+            public DateTime ExpiryTime { get; set; }
+        }
+    }
+}
diff --git a/Test/Notion.IntegrationTests/IBlocksClientTests.cs b/Test/Notion.IntegrationTests/IBlocksClientTests.cs
index e141880f..34140883 100644
--- a/Test/Notion.IntegrationTests/IBlocksClientTests.cs
+++ b/Test/Notion.IntegrationTests/IBlocksClientTests.cs
@@ -268,6 +268,29 @@ private static IEnumerable<object[]> BlockData()
                         Assert.NotNull(block);
                         Assert.IsType<DividerBlock>(block);
                     })
+                },
+                new object[] {
+                    new AudioBlock {
+                        Audio = new ExternalFile {
+                            External = new ExternalFile.Info {
+                                Url = "https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3"
+                            }
+                        }
+                    },
+                    new AudioUpdateBlock {
+                        Audio = new ExternalFileInput {
+                            External = new ExternalFileInput.Data {
+                                Url = "https://www.soundhelix.com/examples/mp3/SoundHelix-Song-3.mp3"
+                            }
+                        }
+                    },
+                    new Action<Block>((block) => {
+                        block.Should().NotBeNull();
+
+                        block.Should().BeOfType<AudioBlock>().Subject
+                            .Audio.Should().BeOfType<ExternalFile>().Subject
+                            .External.Url.Should().Be("https://www.soundhelix.com/examples/mp3/SoundHelix-Song-3.mp3");
+                    })
                 }
             };
         }