diff --git a/README.md b/README.md
index 52e8502..39d7db0 100644
--- a/README.md
+++ b/README.md
@@ -106,6 +106,7 @@ Build Docker image and push it.
 
 | Name | Description | Default | Required |
 |------|-------------|---------|----------|
+| build-args | List of build-time variables | N/A | false |
 | file | Dockerfile name | Dockerfile | false |
 | login | Docker login |  | false |
 | organization | Organization | N/A | true |
diff --git a/docs/github-action.md b/docs/github-action.md
index f09a30c..479b250 100644
--- a/docs/github-action.md
+++ b/docs/github-action.md
@@ -3,6 +3,7 @@
 
 | Name | Description | Default | Required |
 |------|-------------|---------|----------|
+| build-args | List of build-time variables | N/A | false |
 | file | Dockerfile name | Dockerfile | false |
 | login | Docker login |  | false |
 | organization | Organization | N/A | true |