diff --git a/packages/editor/src/components/post-status/index.js b/packages/editor/src/components/post-status/index.js
index d0b5ac93977330..ca89e40366b238 100644
--- a/packages/editor/src/components/post-status/index.js
+++ b/packages/editor/src/components/post-status/index.js
@@ -254,6 +254,7 @@ export default function PostStatus() {
 														id={ passwordInputId }
 														__next40pxDefaultSize
 														__nextHasNoMarginBottom
+														maxLength={ 255 }
 													/>
 												</div>
 											) }