diff --git a/alpine.dockerfile b/alpine.dockerfile
index ca3c26a..6a37bdc 100644
--- a/alpine.dockerfile
+++ b/alpine.dockerfile
@@ -2,7 +2,8 @@
 
 FROM alpine:3.16.2
 
-ENV KAVITA_VERSION="0.5.6"
+# build variables
+ARG KAVITA_VERSION="0.5.6"
 
 # use musl package
 RUN wget https://github.com/Kareadita/Kavita/releases/download/v${KAVITA_VERSION}/kavita-linux-musl-x64.tar.gz -O kavita-linux-musl-x64.tar.gz
@@ -17,7 +18,6 @@ RUN mv /Kavita /kavita
 RUN rm kavita-linux-musl-x64.tar.gz
 
 # in /etc/apk/repositories
-# enable 3.16/community repo
 # enable edge/testing repo (with tag @testing)
 # https://wiki.alpinelinux.org/wiki/Package_management#Repository_pinning
 RUN echo '@testing https://dl-cdn.alpinelinux.org/alpine/edge/testing' >> /etc/apk/repositories