diff --git a/Dockerfile b/Dockerfile
index c89ae15..4ab9940 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,7 +15,7 @@ ENV TZ=${TZ}
 ENV USER=${APP_USER}
 
 RUN apt-get update && \
-    apt-get -y --no-install-recommends xz-utils && \
+    apt-get install -y --no-install-recommends xz-utils && \
     tzdata
 
 # add s6 overlay