diff --git a/DOCKERFILE b/DOCKERFILE
index 51e0917..7de6c73 100644
--- a/DOCKERFILE
+++ b/DOCKERFILE
@@ -1,18 +1,27 @@
+# Downdetector Dockerfile
 FROM debian
 
+# Set required environment variables
 ENV WEBSITES='("google.com" "yahoo.com")'
-
 ENV WEBHOOK_URL=""
-
 ENV DISCORD_ID=""
 
-RUN apt update && apt install -y \
+# Set fixed environment variables
+ENV CRON_CONFIG=/downdetector/cron.conf
+
+# Set working directory
+WORKDIR /downdetector
+
+# Update and install dependencies
+RUN apt update && \
+    apt upgrade -y && \
     bash \
     curl \
+    vim \
     cron
 
-COPY ./start.sh /start.sh
-
-CMD ["/start.sh"]
-
+COPY isalive.sh .
+COPY cron.conf .
+COPY start.sh .
 
+CMD ["./start.sh"]