diff --git a/docker/NG-UI/Dockerfile b/docker/NG-UI/Dockerfile
index b7ca8f7..163441f 100644
--- a/docker/NG-UI/Dockerfile
+++ b/docker/NG-UI/Dockerfile
@@ -27,7 +27,8 @@
 RUN curl -s https://deb.nodesource.com/gpgkey/nodesource.gpg.key | apt-key add - && \
     echo "deb https://deb.nodesource.com/node_10.x xenial main" | tee -a /etc/apt/sources.list.d/nodesource.list && \
     apt-get update && \
-    apt-get install -y nodejs=10.24.*
+    apt-get install -y nodejs=10.24.* \
+    && rm -rf /var/lib/apt/lists/*
 
 ARG OSM_NGUI_URL