diff --git a/api/Dockerfile b/api/Dockerfile
index 3b07adf..268d713 100644
--- a/api/Dockerfile
+++ b/api/Dockerfile
@@ -1,5 +1,10 @@
 FROM node:15.8.0-alpine3.13
-RUN apk add --no-cache gnupg tar bash coreutils util-linux
+RUN apk add --no-cache gnupg tar bash coreutils shadow util-linux
+RUN userdel -r node
+RUN for i in $(seq 1000 1500); do \
+        groupadd -g $i runner$i && \
+        useradd -M runner$i -g $i -u $i ; \
+    done
 
 ENV NODE_ENV=production
 WORKDIR /piston_api