diff --git a/docs/Dockerfile b/docs/Dockerfile
index 5d1348e..74d638f 100644
--- a/docs/Dockerfile
+++ b/docs/Dockerfile
@@ -5,7 +5,7 @@ EXPOSE 8080
 ENV VERSION=3.4.0
 
 RUN apk --no-cache add openssl ca-certificates && \
-    apk --no-cache add ruby ruby-etc ruby-webrick && \
+    apk --no-cache add ruby ruby-webrick && \
     apk --no-cache add --virtual .build-deps ruby-dev build-base tzdata && \
     gem install --no-document openvpn-status-web -v ${VERSION} && \
     # set timezone to Berlin