diff --git a/README.md b/README.md
index 1dba13b..2a85cab 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ on:
 |:--------------------:|:-----------:|:---------------------:|:------------------------------------------------:|
 |  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` | `main` |  The branch that triggered the workflow run      |
+|  ref_branch          |  `string`   |    `1/merge` OR `main` |  The branch that triggered the workflow run      |