diff --git a/playbook.yml b/playbook.yml
index ffb721f..0f9421a 100644
--- a/playbook.yml
+++ b/playbook.yml
@@ -37,7 +37,7 @@
     - name: Add ubuntu user to docker group
       user:
         name: ubuntu
-        group: docker
+        groups: docker
         append: true
 
     - name: Log in to DockerHub