diff --git a/package.json b/package.json
index 903bfb8..c9b06e6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@chatenium/chatenium-sdk",
-  "version": "1.1.2",
+  "version": "1.1.3",
   "description": "A library for interacting with the Chatenium API",
   "type": "module",
   "main": "dist/index.js",
diff --git a/src/domain/common.schema.ts b/src/domain/common.schema.ts
index 92cf7cb..70ce6b6 100644
--- a/src/domain/common.schema.ts
+++ b/src/domain/common.schema.ts
@@ -24,4 +24,5 @@ export interface Attachment {
     path: string
     height: number
     width: number
+    extraMetaData: Record<string, string> // Used by clients
 }
\ No newline at end of file