diff --git a/src.ts/providers/abstract-provider.ts b/src.ts/providers/abstract-provider.ts
index 6924e17a5..2d4a98bd3 100644
--- a/src.ts/providers/abstract-provider.ts
+++ b/src.ts/providers/abstract-provider.ts
@@ -51,6 +51,8 @@ import type {
     TransactionRequest
 } from "./provider.js";
 
+type Timer = ReturnType<typeof setTimeout>;
+
 
 // Constants
 const BN_2 = BigInt(2);
@@ -341,7 +343,7 @@ export class AbstractProvider implements Provider {
     #lastBlockNumber: number;
 
     #nextTimer: number;
-    #timers: Map<number, { timer: null | NodeJS.Timer, func: () => void, time: number }>;
+    #timers: Map<number, { timer: null | Timer, func: () => void, time: number }>;
 
     #disableCcipRead: boolean;
 
@@ -983,7 +985,7 @@ export class AbstractProvider implements Provider {
         if (confirms === 0) { return this.getTransactionReceipt(hash); }
 
         return new Promise(async (resolve, reject) => {
-            let timer: null | NodeJS.Timer = null;
+            let timer: null | Timer = null;
 
             const listener = (async (blockNumber: number) => {
                 try {
diff --git a/src.ts/providers/provider-jsonrpc.ts b/src.ts/providers/provider-jsonrpc.ts
index bb162476d..d330c93f8 100644
--- a/src.ts/providers/provider-jsonrpc.ts
+++ b/src.ts/providers/provider-jsonrpc.ts
@@ -32,6 +32,8 @@ import type { Networkish } from "./network.js";
 import type { Provider, TransactionRequest, TransactionResponse } from "./provider.js";
 import type { Signer } from "./signer.js";
 
+type Timer = ReturnType<typeof setTimeout>;
+
 
 const Primitive = "bigint,boolean,function,number,string,symbol".split(/,/g);
 //const Methods = "getAddress,then".split(/,/g);
@@ -358,7 +360,7 @@ export abstract class JsonRpcApiProvider extends AbstractProvider {
 
     // Payloads are queued and triggered in batches using the drainTimer
     #payloads: Array<Payload>;
-    #drainTimer: null | NodeJS.Timer;
+    #drainTimer: null | Timer;
 
     #notReady: null | {
         promise: Promise<void>,