diff --git a/bundlesize.config.json b/bundlesize.config.json
index 726cda7f05e..1da135b564f 100644
--- a/bundlesize.config.json
+++ b/bundlesize.config.json
@@ -22,7 +22,7 @@
     },
     {
       "path": "packages/react-instantsearch/dist/umd/ReactInstantSearch.min.js",
-      "maxSize": "81.25 kB"
+      "maxSize": "81.50 kB"
     },
     {
       "path": "packages/vue-instantsearch/vue2/umd/index.js",
diff --git a/packages/react-instantsearch/src/ui/lib/useStickToBottom.ts b/packages/react-instantsearch/src/ui/lib/useStickToBottom.ts
index 13b0f273c38..f29ff512a51 100644
--- a/packages/react-instantsearch/src/ui/lib/useStickToBottom.ts
+++ b/packages/react-instantsearch/src/ui/lib/useStickToBottom.ts
@@ -607,7 +607,6 @@ function useRefCallback<T extends (ref: HTMLElement | null) => any>(
   callback: T,
   deps: DependencyList
 ) {
-  // biome-ignore lint/correctness/useExhaustiveDependencies: not needed
   const result = useCallback((ref: HTMLElement | null) => {
     result.current = ref;
     return callback(ref);
diff --git a/packages/react-instantsearch/src/widgets/Chat.tsx b/packages/react-instantsearch/src/widgets/Chat.tsx
index 839f893bb08..ce449d547e5 100644
--- a/packages/react-instantsearch/src/widgets/Chat.tsx
+++ b/packages/react-instantsearch/src/widgets/Chat.tsx
@@ -12,6 +12,7 @@ import type {
   RecommendComponentProps,
   RecordWithObjectID,
   ChatToolMessage,
+  MutableRef,
 } from 'instantsearch-ui-components';
 import type { UIMessage } from 'instantsearch.js/es/lib/chat';
 import type { UseChatOptions } from 'react-instantsearch-core';
@@ -93,7 +94,12 @@ type UserHeaderProps = Omit<ChatUiProps['headerProps'], 'onClose'>;
 
 type UserMessagesProps = Omit<
   ChatUiProps['messagesProps'],
-  'messages' | 'tools' | 'indexUiState' | 'setIndexUiState'
+  | 'messages'
+  | 'tools'
+  | 'indexUiState'
+  | 'setIndexUiState'
+  | 'scrollRef'
+  | 'contentRef'
 >;
 
 type UserPromptProps = Omit<
@@ -201,8 +207,8 @@ export function Chat<TObject extends RecordWithObjectID>({
         setIndexUiState,
         isClearing,
         onClearTransitionEnd: handleClearTransitionEnd,
-        scrollRef: { current: scrollRef.current as HTMLDivElement },
-        contentRef: { current: contentRef.current as HTMLDivElement },
+        scrollRef: scrollRef as unknown as MutableRef<HTMLDivElement>,
+        contentRef: contentRef as unknown as MutableRef<HTMLDivElement>,
         isScrollAtBottom: isAtBottom,
         onScrollToBottom: scrollToBottom,
         ...messagesProps,