diff --git a/Dockerfile b/Dockerfile
index 159b1ee7..6f4ec409 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM erlang:20-slim
 MAINTAINER Petr Gotthard <petr.gotthard@centrum.cz>
 
-RUN apt-get update && apt-get install -y wget curl git gnupg apt-transport-https lsb-release && rm -r /var/cache/
+RUN apt-get update && apt-get install -y wget curl git gnupg apt-transport-https lsb-release
 RUN curl -sL https://deb.nodesource.com/setup_8.x | bash - && apt-get install -y nodejs && rm -r /var/cache/
 RUN git clone https://github.com/gotthardp/lorawan-server.git && cd lorawan-server && make release && make clean