diff --git a/types/pg/index.d.ts b/types/pg/index.d.ts
index b87b99a722..6a2bd068d5 100644
--- a/types/pg/index.d.ts
+++ b/types/pg/index.d.ts
@@ -71,11 +71,13 @@ export declare class Pool extends events.EventEmitter {
     connect(callback: (err: Error, client: Client, done: () => void) => void): void;
 
     end(): Promise<void>;
+    
+    query(queryStream: QueryConfig & stream.Readable): stream.Readable;
+    query(queryTextOrConfig: string | QueryConfig): Promise<QueryResult>;
+    query(queryText: string, values: any[]): Promise<QueryResult>;
 
-    query(queryText: string, values?: any[]): Promise<QueryResult>;
-
-    query(queryText: string, callback: (err: Error, result: QueryResult) => void): void;
-    query(queryText: string, values: any[], callback: (err: Error, result: QueryResult) => void): void;
+    query(queryTextOrConfig: string | QueryConfig, callback: (err: Error, result: QueryResult) => void): Query;
+    query(queryText: string, values: any[], callback: (err: Error, result: QueryResult) => void): Query;
 
     on(event: "error", listener: (err: Error, client: Client) => void): this;
     on(event: "connect" | "acquire", listener: (client: Client) => void): this;