diff --git a/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/CodeUpdateBlock.cs b/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/CodeUpdateBlock.cs
index 1364adb0..e6b26fad 100644
--- a/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/CodeUpdateBlock.cs
+++ b/Src/Notion.Client/Api/Blocks/RequestParams/BlocksUpdateParameters/UpdateBlocks/CodeUpdateBlock.cs
@@ -15,6 +15,9 @@ public class Info
 
             [JsonProperty("language")]
             public string Language { get; set; }
+
+            [JsonProperty("caption")]
+            public IEnumerable<RichTextBaseInput> Caption { get; set; }
         }
     }
 }
diff --git a/Src/Notion.Client/Models/Blocks/CodeBlock.cs b/Src/Notion.Client/Models/Blocks/CodeBlock.cs
index 7eb4205d..f00905f7 100644
--- a/Src/Notion.Client/Models/Blocks/CodeBlock.cs
+++ b/Src/Notion.Client/Models/Blocks/CodeBlock.cs
@@ -17,6 +17,9 @@ public class Info
 
             [JsonProperty("language")]
             public string Language { get; set; }
+
+            [JsonProperty("caption")]
+            public IEnumerable<RichTextBase> Caption { get; set; }
         }
     }
 }