diff --git a/Dockerfile b/Dockerfile
index 9f1bc433b8d7797522a004a7e97750af52648087..14bcd16f0dc299b37493d2aafb5163dc3ea5654e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,3 @@
 FROM ubuntu:19.04
 
-RUN ln -fs /usr/share/zoneinfo/Europe/Berlin /etc/localtime && apt-get update -qq && apt-get install -y -qq gcc libc6-dev make git bison flex tcl cmake gcc-arm-linux-gnueabihf gcc-mingw-w64-x86-64 binutils-mingw-w64-x86-64
+RUN ln -fs /usr/share/zoneinfo/Europe/Berlin /etc/localtime && apt-get update -qq && apt-get install -y -qq --no-install-recommends gcc libc6-dev make git bison flex tcl cmake gcc-arm-linux-gnueabihf gcc-mingw-w64-x86-64 binutils-mingw-w64-x86-64