diff --git a/edge/Dockerfile b/edge/Dockerfile
index 7457885..f45c132 100644
--- a/edge/Dockerfile
+++ b/edge/Dockerfile
@@ -1,5 +1,5 @@
 FROM alpine:edge
-RUN apk add --update curl && rm -rf /var/cache/apk/*
-COPY entrypoint.sh /
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["curl"]
+RUN apk add --no-cache curl
+COPY entrypoint.sh /
diff --git a/latest/Dockerfile b/latest/Dockerfile
index 9347d00..295801a 100644
--- a/latest/Dockerfile
+++ b/latest/Dockerfile
@@ -1,5 +1,5 @@
 FROM alpine:latest
-RUN apk add --update curl && rm -rf /var/cache/apk/*
-COPY entrypoint.sh /
 ENTRYPOINT ["/entrypoint.sh"]
 CMD ["curl"]
+RUN apk add --no-cache curl
+COPY entrypoint.sh /