diff --git a/docker/Dockerfile b/docker/Dockerfile
index 1ecbc08..96789ad 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -7,11 +7,12 @@ RUN apt-get update \
         libgtk2.0-0 libcanberra-gtk-module libxext-dev libxrender-dev libxtst-dev libxslt-dev dmz-cursor-theme \
         build-essential cmake git \
         libglfw3-dev libassimp-dev libxinerama-dev libxcursor-dev mesa-utils mesa-utils-extra kmod \
-        wget htop zip unzip nano
+        wget htop zip unzip nano \
+    && apt-get clean && rm -rf /var/lib/apt/lists/*
 
 ADD https://github.com/krallin/tini/releases/download/v${TINI_VERSION}/tini /tini
 RUN chmod +x /tini
 
 ENTRYPOINT ["/tini", "--"]
 
-CMD ["sleep", "infinity"]
\ No newline at end of file
+CMD ["sleep", "infinity"]