diff --git a/Dockerfile b/Dockerfile
index 4b1af5b..eccb4fd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,6 @@
-# pre release version to fix USG DNS https://community.ui.com/releases/UniFi-Network-Application-7-5-176/7f7680e3-cc36-4a05-8502-38bb774384f9
-ARG PKGURL=https://dl.ui.com/unifi/7.5.176-1136930355/unifi_sysvinit_all.deb
 FROM jacobalberty/unifi:latest
 
+# pre release version to fix USG DNS https://community.ui.com/releases/UniFi-Network-Application-7-5-176/7f7680e3-cc36-4a05-8502-38bb774384f9
+RUN curl -L -o ./unifi.deb "https://dl.ui.com/unifi/7.5.176-1136930355/unifi_sysvinit_all.deb" && apt -qy install ./unifi.deb && rm -f ./unifi.deb
+
 HEALTHCHECK NONE