diff --git a/Dockerfile b/Dockerfile
index ad668f5..8c2ff9c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,8 @@
 # syntax = docker/dockerfile:latest
 
-FROM alpine:3.18.3
+ARG ALPINE_VERSION=3.18
+
+FROM alpine:${ALPINE_VERSION}
 
 RUN apk add --no-cache curl jq