diff --git a/Dockerfile b/Dockerfile
index 85478d5..393556b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ MAINTAINER hanjo@bunix.de
 
 ARG HELM_VERSION=v2.9.0
 
-RUN apk add --no-cache curl
+RUN apk add --no-cache curl tar gzip
 
 RUN curl https://storage.googleapis.com/kubernetes-helm/helm-$HELM_VERSION-linux-amd64.tar.gz --output helm-$HELM_VERSION-linux-amd64.tar.gz --silent && \
 tar -zxvf helm-$HELM_VERSION-linux-amd64.tar.gz
\ No newline at end of file