diff --git a/.changeset/five-foxes-push.md b/.changeset/five-foxes-push.md
new file mode 100644
index 00000000..09ea49ea
--- /dev/null
+++ b/.changeset/five-foxes-push.md
@@ -0,0 +1,5 @@
+---
+"@genseki/react": patch
+---
+
+fix: rich text type button
diff --git a/packages/react/v2/components/compound/editor/components/redo-undo-buttons.tsx b/packages/react/v2/components/compound/editor/components/redo-undo-buttons.tsx
index ad983fdf..421b352e 100644
--- a/packages/react/v2/components/compound/editor/components/redo-undo-buttons.tsx
+++ b/packages/react/v2/components/compound/editor/components/redo-undo-buttons.tsx
@@ -31,6 +31,7 @@ export const RedoButton = () => {
 
   return (
     <Button
+      type="button"
       size="md"
       variant="ghost"
       className="duration-150 ease-out transition-all h-[36px]"
diff --git a/packages/react/v2/components/compound/editor/components/text-align-buttons.tsx b/packages/react/v2/components/compound/editor/components/text-align-buttons.tsx
index 8e023958..ce286aac 100644
--- a/packages/react/v2/components/compound/editor/components/text-align-buttons.tsx
+++ b/packages/react/v2/components/compound/editor/components/text-align-buttons.tsx
@@ -78,6 +78,7 @@ export const TextAlignButton = ({ type }: { type: TextAlignType }) => {
   return (
     <ToggleGroupItem value={type} aria-label={`Align ${type}`} asChild>
       <ToolbarItem
+        type="button"
         variant="default"
         data-selected={isSelected}
         aria-label={`Text align ${type}`}
diff --git a/packages/react/v2/components/compound/editor/components/upload-image-button.tsx b/packages/react/v2/components/compound/editor/components/upload-image-button.tsx
index 3e92c6ca..7e0f91a5 100644
--- a/packages/react/v2/components/compound/editor/components/upload-image-button.tsx
+++ b/packages/react/v2/components/compound/editor/components/upload-image-button.tsx
@@ -11,6 +11,7 @@ export const UploadImageButton = () => {
 
   return (
     <Button
+      type="button"
       size="md"
       variant="ghost"
       className="self-center h-[36px]"