diff --git a/package-lock.json b/package-lock.json
index 26bdb0d..2d60598 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "lightrail-client",
-  "version": "4.0.0",
+  "version": "4.1.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index af69282..e7de1db 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "lightrail-client",
-  "version": "4.1.1",
+  "version": "4.1.2",
   "description": "A Javascript and Typescript client for Lightrail",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
diff --git a/src/params/transactions/CapturePendingParams.ts b/src/params/transactions/CapturePendingParams.ts
index 91d9a53..a4ca15e 100644
--- a/src/params/transactions/CapturePendingParams.ts
+++ b/src/params/transactions/CapturePendingParams.ts
@@ -3,6 +3,7 @@ import {Transaction} from "../../model";
 
 export interface CapturePendingParams {
     id: string;
+    metadata?: object;
 }
 
 export interface CapturePendingResponse extends LightrailResponse<Transaction> {
diff --git a/src/params/transactions/ReverseParams.ts b/src/params/transactions/ReverseParams.ts
index 2813a5f..f007692 100644
--- a/src/params/transactions/ReverseParams.ts
+++ b/src/params/transactions/ReverseParams.ts
@@ -3,6 +3,7 @@ import {Transaction} from "../../model";
 
 export interface ReverseParams {
     id: string;
+    metadata?: object;
 }
 
 export interface ReverseResponse extends LightrailResponse<Transaction> {
diff --git a/src/params/transactions/VoidPendingParams.ts b/src/params/transactions/VoidPendingParams.ts
index 9320629..e2dce8c 100644
--- a/src/params/transactions/VoidPendingParams.ts
+++ b/src/params/transactions/VoidPendingParams.ts
@@ -3,6 +3,7 @@ import {Transaction} from "../../model";
 
 export interface VoidPendingParams {
     id: string;
+    metadata?: object;
 }
 
 export interface VoidPendingResponse extends LightrailResponse<Transaction> {