diff --git a/images/base/ubuntu.Dockerfile b/images/base/ubuntu.Dockerfile
index fadea3d..07ed181 100644
--- a/images/base/ubuntu.Dockerfile
+++ b/images/base/ubuntu.Dockerfile
@@ -52,7 +52,7 @@ RUN ln -s /usr/libexec/docker/cli-plugins/docker-compose /usr/bin/docker-compose
 ENV LANG=en_US.UTF-8
 
 # Remove the `ubuntu` user and add a user `coder` so that you're not developing as the `root` user
-RUN deluser --remove-home ubuntu && \
+RUN userdel -r ubuntu && \
     useradd coder \
     --create-home \
     --shell=/bin/bash \