diff --git a/test-d/arguments/env.test-d.ts b/test-d/arguments/env.test-d.ts
index b25c54555b..0310c43c7c 100644
--- a/test-d/arguments/env.test-d.ts
+++ b/test-d/arguments/env.test-d.ts
@@ -24,8 +24,8 @@ expectType<NodeEnv>('' as NodeJS.ProcessEnv['NODE_ENV']);
 expectType<NodeEnv>('' as globalThis.NodeJS.ProcessEnv['NODE_ENV']);
 
 // But Execa's types are not impacted
-expectType<string | undefined>('' as Exclude<Options['env'], undefined>['NODE_ENV']);
 expectAssignable<Result>(await execa({env: {test: 'example'}})`unicorns`);
 expectAssignable<Result>(await execa({env: {test: 'example'} as const})`unicorns`);
 expectAssignable<Result>(await execa({env: {test: undefined}})`unicorns`);
 expectAssignable<Result>(await execa({env: {test: undefined} as const})`unicorns`);
+expectAssignable<Result>(await execa({env: {port: 3000} as const})`unicorns`);
diff --git a/types/arguments/options.d.ts b/types/arguments/options.d.ts
index 2719cc9b4f..1baaab69c3 100644
--- a/types/arguments/options.d.ts
+++ b/types/arguments/options.d.ts
@@ -76,7 +76,7 @@ export type CommonOptions<IsSync extends boolean = boolean> = {
 
 	@default [process.env](https://nodejs.org/api/process.html#processenv)
 	*/
-	readonly env?: Readonly<Partial<Record<string, string>>>;
+	readonly env?: Readonly<Partial<Record<string, unknown>>>;
 
 	/**
 	If `true`, the subprocess uses both the `env` option and the current process' environment variables ([`process.env`](https://nodejs.org/api/process.html#processenv)).