diff --git a/Dockerfile b/Dockerfile
index 260c17d..884e49c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,8 +9,6 @@ WORKDIR "/home/node"
 
 ARG WIKI_PACKAGE=wiki@0.37.0
 
-ARG CACHE_BUST=1
-
 USER node
 
 RUN npm install -g --prefix . $WIKI_PACKAGE