diff --git a/docs/Configuration.md b/docs/Configuration.md
index 7b145550d1..669ead15b5 100644
--- a/docs/Configuration.md
+++ b/docs/Configuration.md
@@ -605,7 +605,7 @@ Type: `boolean`
 
 Whether we should enable CMD+R hotkey for refreshing the bundle.
 
-#### `enhanceMiddleware`
+#### `enhanceMiddleware` <div class="label deprecated">Deprecated</div>
 
 Type: `(Middleware, MetroServer) => Middleware`
 
diff --git a/packages/metro-config/src/configTypes.flow.js b/packages/metro-config/src/configTypes.flow.js
index 9238bf4358..29542dd352 100644
--- a/packages/metro-config/src/configTypes.flow.js
+++ b/packages/metro-config/src/configTypes.flow.js
@@ -164,6 +164,7 @@ type MetalConfigT = {
 };
 
 type ServerConfigT = {
+  /** @deprecated */
   enhanceMiddleware: (Middleware, MetroServer) => Middleware | Server,
   port: number,
   rewriteRequestUrl: string => string,
diff --git a/packages/metro-config/types/configTypes.d.ts b/packages/metro-config/types/configTypes.d.ts
index 2cfbf983bc..c4a89aabdf 100644
--- a/packages/metro-config/types/configTypes.d.ts
+++ b/packages/metro-config/types/configTypes.d.ts
@@ -159,6 +159,7 @@ export interface MetalConfigT {
 }
 
 export interface ServerConfigT {
+  /** @deprecated */
   enhanceMiddleware: (
     metroMiddleware: Middleware,
     metroServer: MetroServer,