diff --git a/types/index.d.ts b/types/index.d.ts
index 293b1e0..ac4432d 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -86,6 +86,20 @@ interface Dist {
   unpackedSize?: number
 }
 
+interface DevEngineDependency {
+  name: string
+  version?: string
+  onFail?: 'ignore' | 'warn' | 'error' | 'download'
+}
+
+interface DevEngines {
+  os?: DevEngineDependency | DevEngineDependency[]
+  cpu?: DevEngineDependency | DevEngineDependency[]
+  libc?: DevEngineDependency | DevEngineDependency[]
+  runtime?: DevEngineDependency | DevEngineDependency[]
+  packageManager?: DevEngineDependency | DevEngineDependency[]
+}
+
 // this is in the tarball for the project. it really could have anything in it.
 export interface PackageJSON {
   author?: Contact | string
@@ -100,6 +114,7 @@ export interface PackageJSON {
   dependencies?: Record<string, string>
   description?: string
   devDependencies?: Record<string, string>
+  devEngines?: DevEngines
   directories?: Record<string, string>
   engines?: Record<string, string>
   files?: string[]