diff --git a/index.d.ts b/index.d.ts
index 2fdb9e9..d9d1511 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -9,6 +9,9 @@ declare module 'retry-request' {
       retries?: number,
       noResponseRetries?: number,
       currentRetryAttempt?: number,
+      maxRetryDelay?: number,
+      retryDelayMultiplier?: number,
+      totalTimeout?: number,
       shouldRetryFn?: (response: request.RequestResponse) => boolean
     }
   }