diff --git a/Dockerfile b/Dockerfile
index 80ec0aef..f19834c6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,14 +2,10 @@ FROM debian:buster-slim
 
 ARG dir="/home/pi/pialert"
 
-#Update and reduce image size
 RUN apt-get update \
-    && apt-get install --no-install-recommends apt-utils cron sudo lighttpd php php-cgi php-fpm php-sqlite3 sqlite3 dnsutils net-tools python iproute2 -y \
-    #Install without the --no-install-recommends flag
-    && apt-get install curl arp-scan -y \
-    #clean-up
-    && apt clean autoclean \
-    && apt autoremove 
+    && apt-get install --no-install-recommends apt-utils cron sudo lighttpd php php-cgi php-fpm php-sqlite3 sqlite3 dnsutils net-tools python iproute2 curl arp-scan -y \
+    && apt-get clean autoclean \
+    && rm -rf /var/lib/apt/lists/*
 
 #add the pi user
 RUN useradd -ms /bin/bash pi