diff --git a/.docker/Dockerfile b/.docker/Dockerfile
index 00bb74e1a058b86edbe019704c710b9224f0c691..8a42d3018052b509efaeb9af9d9305fa418ca822 100644
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@@ -1,10 +1,6 @@
 FROM julia:1.6
 
-RUN apt-get update
-RUN apt-get install -y cmake
-RUN apt-get install -y git
-RUN apt-get install -y python3-pip
-RUN apt-get install -y curl
+RUN apt-get update && apt-get install -y libjsoncpp1 cmake git python3-pip curl
 
 # Dirty workaround for java not linking to the correct manpage directory (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=863199)
 RUN mkdir -p /usr/share/man/man1