diff --git a/README.md b/README.md
index 5f41a1e..7ca9aa2 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,10 @@ Name of the image. Should be specified without domain and project.
 
 Image tag to set for the built image.
 
+### `image_tag2`
+
+Second image tag to set for the built image.
+
 ## Required Environment Variables
 
 ### `GCLOUD_SERVICE_KEY`
@@ -44,4 +48,4 @@ with:
   env:
     GCLOUD_SERVICE_KEY: ${{ secrets.GCLOUD_SERVICE_KEY }}
     GOOGLE_PROJECT_ID: ${{ secrets.GOOGLE_PROJECT_ID }}
-```
\ No newline at end of file
+```