diff --git a/packages/core/src/resources/Webhooks.ts b/packages/core/src/resources/Webhooks.ts
index bae3d892..ededbcca 100644
--- a/packages/core/src/resources/Webhooks.ts
+++ b/packages/core/src/resources/Webhooks.ts
@@ -325,6 +325,7 @@ export interface WebhookMergeRequestEventSchema extends BaseWebhookEventSchema {
     draft: boolean;
     first_contribution: boolean;
     merge_status: string;
+    merge_commit_sha: string;
     target_project_id: number;
     description: string;
     total_time_spent: number;