diff --git a/README.md b/README.md
index 8e7f523..4b3c3e8 100644
--- a/README.md
+++ b/README.md
@@ -7,12 +7,13 @@ Get branch information without the `/ref/*` prefix
 
 ## Outputs
 
-|   Output             |    type     |  Example                    |  Description                                                |
-|:--------------------:|:-----------:|:---------------------------:|:-----------------------------------------------------------:|
-|  current_branch      |  `string`   |    `main` *OR* `feature/test` |  Always returns a valid branch name for a triggered workflow run. |
-|  base_ref_branch     |  `string`   |    `main`                   |  The target branch of a pull request                        |
-|  head_ref_branch     |  `string`   |    `feature/test`           |  The source branch of a pull request                        |
-|  ref_branch          |  `string`   |    `1/merge` *OR* `main`      |  The branch that triggered the workflow run                 |
+|   Output             |    type      |  Example                    |  Description                                                      |
+|:--------------------:|:------------:|:---------------------------:|:-----------------------------------------------------------------:|
+|  is_default          |  `boolean`   |  `true` *OR* `false`        |  Detects wheter the action is running on a default branch         |
+|  current_branch      |  `string`    |  `main` *OR* `feature/test` |  Always returns a valid branch name for a triggered workflow run. |
+|  base_ref_branch     |  `string`    |  `main`                     |  The target branch of a pull request                              |
+|  head_ref_branch     |  `string`    |  `feature/test`             |  The source branch of a pull request                              |
+|  ref_branch          |  `string`    |  `1/merge` *OR* `main`      |  The branch that triggered the workflow run                       |
 
 
 ## Usage