diff --git a/Dockerfile b/Dockerfile
index b64b421..f42b066 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
-FROM alpine:3.8
+FROM alpine:latest
 
-RUN apk update ; apk add wget
+RUN apk update ; apk upgrade ; apk add wget ; apk add --no-cache tzdata ; apk add --no-cache bash
 COPY pfsense-backup.sh /
 VOLUME ["/data"]
 CMD ["/pfsense-backup.sh"]