diff --git a/lib/datasource/npm/get.ts b/lib/datasource/npm/get.ts
index d40574a4579b27be4e54b4a0832eb45699f76567..2ea47e90c86977fa9baacba485d8a5e997389ee6 100644
--- a/lib/datasource/npm/get.ts
+++ b/lib/datasource/npm/get.ts
@@ -42,7 +42,7 @@ export interface NpmDependency extends ReleaseResult {
   sourceDirectory?: string;
 }
 
-interface NpmResponse {
+export interface NpmResponse {
   _id: string;
   name?: string;
   versions?: Record<
@@ -55,6 +55,8 @@ interface NpmResponse {
       homepage?: string;
       deprecated?: boolean;
       gitHead?: string;
+      dependencies?: Record<string, string>;
+      devDependencies?: Record<string, string>;
     }
   >;
   repository?: {