diff --git a/Dockerfile b/Dockerfile
index 75ad3c7..df814a9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM alpine:latest
 
-RUN apk add --update wget tar && \
+RUN apk add --update wget tar xz && \
   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