diff --git a/lib/ResolverFactory.js b/lib/ResolverFactory.js
index bf9adbba..90d7bf77 100644
--- a/lib/ResolverFactory.js
+++ b/lib/ResolverFactory.js
@@ -5,8 +5,8 @@
 
 "use strict";
 
-const versions = require("process").versions;
 const findPnpApi = require("module").findPnpApi;
+const versions = require("process").versions;
 const Resolver = require("./Resolver");
 const { getType, PathType } = require("./util/path");
 
diff --git a/types.d.ts b/types.d.ts
index 2e3e0bd1..1a652fb2 100644
--- a/types.d.ts
+++ b/types.d.ts
@@ -170,7 +170,11 @@ type Plugin =
 	| { apply: (arg0: Resolver) => void }
 	| ((this: Resolver, arg1: Resolver) => void);
 declare interface PnpApiImpl {
-	resolveToUnqualified: (arg0: string, arg1: string, arg2: object) => string | null;
+	resolveToUnqualified: (
+		arg0: string,
+		arg1: string,
+		arg2: object
+	) => null | string;
 }
 declare interface PossibleFileSystemError {
 	code?: string;