diff --git a/action.yml b/action.yml
index ae801df..09969ec 100644
--- a/action.yml
+++ b/action.yml
@@ -15,6 +15,6 @@ runs:
       env:
         DOCKER_HOST: ${{ inputs.docker }}
       with:
-        entrypoint: "/bin/bash"
+        entrypoint: "/bin/sh"
         args: |
           -c 'docker login ${{vars.DOCKER_REGISTRY}} -u ${{vars.DOCKER_USER}} -p ${{vars.DOCKER_PASS}} && docker service update {{inputs.service}} -d --with-registry-auth --image ${{vars.DOCKER_REGISTRY}}/${{github.repository}}:${{ github.ref_name }}'