diff --git a/lib/index.js b/lib/index.js
index a4003a0f0..da738a30f 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -75,6 +75,8 @@ const memoize = require("./util/memoize");
 /** @typedef {import("./stats/DefaultStatsFactoryPlugin").StatsModuleTraceDependency} StatsModuleTraceDependency */
 /** @typedef {import("./stats/DefaultStatsFactoryPlugin").StatsModuleTraceItem} StatsModuleTraceItem */
 /** @typedef {import("./stats/DefaultStatsFactoryPlugin").StatsProfile} StatsProfile */
+/** @typedef {import("./serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
+/** @typedef {import("./serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
 /** @typedef {import("./util/fs").InputFileSystem} InputFileSystem */
 /** @typedef {import("./util/fs").OutputFileSystem} OutputFileSystem */
 
diff --git a/types.d.ts b/types.d.ts
index 851c9ab59..33b118a4a 100644
--- a/types.d.ts
+++ b/types.d.ts
@@ -18325,6 +18325,8 @@ declare namespace exports {
 		StatsModuleTraceDependency,
 		StatsModuleTraceItem,
 		StatsProfile,
+		ObjectSerializerContext,
+		ObjectDeserializerContext,
 		InputFileSystem,
 		OutputFileSystem,
 		LoaderModule,