diff --git a/Dockerfile b/Dockerfile
index 39479d6..3e19a90 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,8 +5,7 @@ ENV UID=99
 ENV GUID=100
 
 RUN deluser node
-RUN addgroup -g $GUID foundry \
-    && adduser -u $UID -G foundry -s /bin/sh -D foundry
+RUN adduser -r -u foundry -G 99 100
 
 USER foundry