diff --git a/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/AudioUpdateBlock.cs b/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/AudioUpdateBlock.cs
index f341e441..8747ad63 100644
--- a/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/AudioUpdateBlock.cs
+++ b/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/AudioUpdateBlock.cs
@@ -1,4 +1,5 @@
-using Newtonsoft.Json;
+using System.Collections.Generic;
+using Newtonsoft.Json;
 
 namespace Notion.Client
 {
diff --git a/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/SyncedBlockUpdateBlock.cs b/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/SyncedBlockUpdateBlock.cs
new file mode 100644
index 00000000..97f393fe
--- /dev/null
+++ b/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/SyncedBlockUpdateBlock.cs
@@ -0,0 +1,22 @@
+using Newtonsoft.Json;
+
+namespace Notion.Client
+{
+    public class SyncedBlockUpdateBlock : UpdateBlock, IUpdateBlock
+    {
+        [JsonProperty("synced_block")]
+        public Data SyncedBlock { get; set; }
+
+        public class Data
+        {
+            [JsonProperty("synced_from")]
+            public SyncedFromBlockId SyncedFrom { get; set; }
+
+            public class SyncedFromBlockId
+            {
+                [JsonProperty("block_id")]
+                public string BlockId { get; set; }
+            }
+        }
+    }
+}
diff --git a/Src/Notion.Client/Models/Blocks/BlockType.cs b/Src/Notion.Client/Models/Blocks/BlockType.cs
index ab7fdb19..6ebec8f1 100644
--- a/Src/Notion.Client/Models/Blocks/BlockType.cs
+++ b/Src/Notion.Client/Models/Blocks/BlockType.cs
@@ -88,6 +88,9 @@ public enum BlockType
         [EnumMember(Value = "link_to_page")]
         LinkToPage,
 
+        [EnumMember(Value = "synced_block")]
+        SyncedBlock,
+
         [EnumMember(Value = "unsupported")]
         Unsupported
     }
diff --git a/Src/Notion.Client/Models/Blocks/IColumnChildrenBlock.cs b/Src/Notion.Client/Models/Blocks/IColumnChildrenBlock.cs
index 35370460..673bc156 100644
--- a/Src/Notion.Client/Models/Blocks/IColumnChildrenBlock.cs
+++ b/Src/Notion.Client/Models/Blocks/IColumnChildrenBlock.cs
@@ -4,7 +4,11 @@ public interface ITemplateChildrendBlock : IBlock
     {
     }
 
-    public interface IColumnChildrenBlock : IBlock, ITemplateChildrendBlock
+    public interface ISyncedBlockChildren : IBlock
+    {
+    }
+
+    public interface IColumnChildrenBlock : IBlock, ITemplateChildrendBlock, ISyncedBlockChildren
     {
     }
 
diff --git a/Src/Notion.Client/Models/Blocks/SyncedBlockBlock.cs b/Src/Notion.Client/Models/Blocks/SyncedBlockBlock.cs
new file mode 100644
index 00000000..33c4dd25
--- /dev/null
+++ b/Src/Notion.Client/Models/Blocks/SyncedBlockBlock.cs
@@ -0,0 +1,31 @@
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace Notion.Client
+{
+    public class SyncedBlockBlock : Block, IColumnChildrenBlock, INonColumnBlock
+    {
+        public override BlockType Type => BlockType.SyncedBlock;
+
+        [JsonProperty("synced_block")]
+        public Data SyncedBlock { get; set; }
+
+        public class Data
+        {
+            [JsonProperty("synced_from")]
+            public SyncedFromBlockId SyncedFrom { get; set; }
+
+            [JsonProperty("children")]
+            public IEnumerable<ISyncedBlockChildren> Children { get; set; }
+
+            public class SyncedFromBlockId
+            {
+                [JsonProperty("type")]
+                public string Type { get; set; }
+
+                [JsonProperty("block_id")]
+                public string BlockId { get; set; }
+            }
+        }
+    }
+}