diff --git a/.github/workflows/deploy_heroku.yml b/.github/workflows/deploy_heroku.yml
index a164a3c..28399c8 100644
--- a/.github/workflows/deploy_heroku.yml
+++ b/.github/workflows/deploy_heroku.yml
@@ -14,7 +14,7 @@ on:
 
 env:
   DOCKER_REGISTRY_HOST: ${{ secrets.DOCKER_REGISTRY_HOST }}
-  DOCKER_REGISTRY_USERNAME: ${{ github.repository_owner }}
+  DOCKER_REGISTRY_USERNAME: ${{ github.actor }}
   DOCKER_REGISTRY_TOKEN: ${{ secrets.GITHUB_TOKEN }}
   DOCKER_IMAGE: ${{ github.repository }}
   HEROKU_API_KEY: ${{ secrets.HEROKU_API_KEY }}