diff --git a/microsocks/Dockerfile b/microsocks/Dockerfile
index b63ff1b..e3be1b7 100644
--- a/microsocks/Dockerfile
+++ b/microsocks/Dockerfile
@@ -5,9 +5,9 @@
 FROM alpine:3
 MAINTAINER EasyPi Software Foundation
 
-ENV MICROSOCKS_VERSION=1.0.2
-ENV MICROSOCKS_FILE=microsocks-$MICROSOCKS_VERSION-x86_64-static.xz
-ENV MICROSOCKS_URL=https://github.com/rofl0r/microsocks/releases/download/v$MICROSOCKS_VERSION/$MICROSOCKS_FILE
+ARG MICROSOCKS_VERSION=1.0.3
+ARG MICROSOCKS_FILE=microsocks-$MICROSOCKS_VERSION-x86_64-static.xz
+ARG MICROSOCKS_URL=https://github.com/rofl0r/microsocks/releases/download/v$MICROSOCKS_VERSION/$MICROSOCKS_FILE
 
 RUN set -xe \
  && apk add --no-cache curl xz \