diff --git a/docs/reference-guides/core-blocks/README.md b/docs/reference-guides/core-blocks/README.md
index 3f18eeee13038e..13037a8fbbb729 100644
--- a/docs/reference-guides/core-blocks/README.md
+++ b/docs/reference-guides/core-blocks/README.md
@@ -621,7 +621,7 @@ The author biography.
 
 -	**Name:** [core/post-author-biography](https://developer.wordpress.org/block-editor/reference-guides/core-blocks/core-blocks-theme/core-block-post-author-biography/)
 -	**Category:** [theme](https://developer.wordpress.org/block-editor/reference-guides/core-blocks/core-blocks-theme/)
--	**Supports:** anchor, background (gradient), color (background, gradients, link, text), interactivity (clientNavigation), spacing (margin, padding), typography (fontSize, lineHeight, textAlign, textColumns)
+-	**Supports:** anchor, background (gradient), color (background, gradients, link, text), interactivity (clientNavigation), spacing (margin, padding), typography (fontSize, lineHeight, textAlign, textColumns, textIndent)
 
 ## Author Name
 
diff --git a/packages/block-library/src/post-author-biography/README.md b/packages/block-library/src/post-author-biography/README.md
index 956258818dc121..6be1604e672cf4 100644
--- a/packages/block-library/src/post-author-biography/README.md
+++ b/packages/block-library/src/post-author-biography/README.md
@@ -32,6 +32,7 @@ _Defined via the [`supports`](https://developer.wordpress.org/block-editor/refer
   - [`lineHeight`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#typography-lineheight): `true`
   - [`textAlign`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#typography-textalign): `true`
   - `textColumns`: `true`
+  - `textIndent`: `true`
 - [`interactivity`](https://developer.wordpress.org/block-editor/reference-guides/block-api/block-supports/#interactivity):
   - `clientNavigation`: `true`
 
diff --git a/packages/block-library/src/post-author-biography/block.json b/packages/block-library/src/post-author-biography/block.json
index a9f9870f842ed8..bf611c9ed58c5e 100644
--- a/packages/block-library/src/post-author-biography/block.json
+++ b/packages/block-library/src/post-author-biography/block.json
@@ -32,6 +32,7 @@
 			"lineHeight": true,
 			"textAlign": true,
 			"textColumns": true,
+			"textIndent": true,
 			"__experimentalFontFamily": true,
 			"__experimentalFontWeight": true,
 			"__experimentalFontStyle": true,