diff --git a/Dockerfile b/Dockerfile
index 0d35d08..a0927cc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,8 +5,9 @@ COPY . .
 RUN mkdir ./bin && \
     CGO_ENABLED=0 GOARCH=amd64 GOOS=linux go build -tags netgo -installsuffix netgo -o ./bin/goStatic && \
     mkdir ./bin/etc && \
-    cp ./passwd ./bin/etc && \
-    cp ./group ./bin/etc
+    UI=$(( ( RANDOM % 9999 )  + 99 )) && \
+    echo "appuser:x:$ID:$ID::/sbin/nologin:/bin/false" > ./bin/etc/passwd && \
+    echo "appgroup:x:$ID:appuser" > ./bin/etc/group
 
 # stage 1
 FROM scratch
diff --git a/group b/group
deleted file mode 100644
index 14bf15f..0000000
--- a/group
+++ /dev/null
@@ -1 +0,0 @@
-appgroup:x:1231:appuser
diff --git a/passwd b/passwd
deleted file mode 100644
index 403de03..0000000
--- a/passwd
+++ /dev/null
@@ -1 +0,0 @@
-appuser:x:1234:1231::/home/appuser:/bin/false