diff --git a/types/next/index.d.ts b/types/next/index.d.ts
index 4942e778c5..2dadc6e10b 100644
--- a/types/next/index.d.ts
+++ b/types/next/index.d.ts
@@ -59,7 +59,7 @@ declare namespace next {
             req: http.IncomingMessage,
             res: http.ServerResponse,
             pathname: string,
-            query?: { [key: string]: any },
+            query?: { [key: string]: string | string[] },
             parsedUrl?: UrlLike,
         ): Promise<void>;
         renderError(
@@ -67,7 +67,7 @@ declare namespace next {
             req: http.IncomingMessage,
             res: http.ServerResponse,
             pathname: string,
-            query?: { [key: string]: any },
+            query?: { [key: string]: string | string[] },
         ): Promise<void>;
         render404(
             req: http.IncomingMessage,
@@ -78,14 +78,14 @@ declare namespace next {
             req: http.IncomingMessage,
             res: http.ServerResponse,
             pathname: string,
-            query?: { [key: string]: any },
+            query?: { [key: string]: string | string[] },
         ): Promise<string>;
         renderErrorToHTML(
             err: any,
             req: http.IncomingMessage,
             res: http.ServerResponse,
             pathname: string,
-            query?: { [key: string]: any },
+            query?: { [key: string]: string | string[] },
         ): Promise<string>;
 
         serveStatic(
diff --git a/types/next/router.d.ts b/types/next/router.d.ts
index 90a2e3af55..4102e87b12 100644
--- a/types/next/router.d.ts
+++ b/types/next/router.d.ts
@@ -20,7 +20,7 @@ export interface SingletonRouter {
     readonly pathname: string;
     readonly route: string;
     readonly asPath?: string;
-    readonly query?: { [key: string]: any };
+    readonly query?: { [key: string]: string | string[] };
 
     // router methods
     reload(route: string): Promise<void>;