diff --git a/types/react-helmet/index.d.ts b/types/react-helmet/index.d.ts
index 0a38f57c10..cbe708f2f7 100644
--- a/types/react-helmet/index.d.ts
+++ b/types/react-helmet/index.d.ts
@@ -10,6 +10,15 @@ type LinkProps = JSX.IntrinsicElements['link'];
 
 type MetaProps = JSX.IntrinsicElements['meta'];
 
+interface TagUpdates {
+    baseTag: Array<any>;
+    linkTags: Array<HTMLLinkElement>;
+    metaTags: Array<HTMLMetaElement>;
+    noscriptTags: Array<any>;
+    scriptTags: Array<HTMLScriptElement>;
+    styleTags: Array<HTMLStyleElement>;
+}
+
 export interface HelmetProps {
     async?: boolean;
     base?: any;
@@ -18,7 +27,7 @@ export interface HelmetProps {
     defer?: boolean;
     encodeSpecialCharacters?: boolean;
     htmlAttributes?: any;
-    onChangeClientState?: (newState: any) => void;
+    onChangeClientState?: (newState: any, addedTags: TagUpdates, removedTags: TagUpdates) => void;
     link?: LinkProps[];
     meta?: MetaProps[];
     noscript?: Array<any>;