diff --git a/Dockerfile b/Dockerfile
index 67e7b8a..75ad3c7 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,8 @@
 FROM alpine:latest
 
-RUN apk add --update wget tar && tar xf upx-3.95-amd64_linux.tar.xz && \
+RUN apk add --update wget tar && \
   wget https://github.com/upx/upx/releases/download/v3.95/upx-3.95-amd64_linux.tar.xz && \
+  tar xf upx-3.95-amd64_linux.tar.xz && \
   mv upx-3.95-amd64_linux/upx /usr/local/bin
 
 ENTRYPOINT ["upx"]