diff --git a/Dockerfile b/Dockerfile
index f9b7699..f350f30 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 FROM tatsushid/tinycore:6.4-x86
 ENV CORE x86 
-ENV NODE_VERSION 4.4.2
-ENV NPM_VERSION 3.8.6
+ENV NODE_VERSION 8.9.4
+ENV NPM_VERSION 5.8.0
 
 RUN tce-load -wic gnupg curl \
     && rm -rf /tmp/tce/optional/*
@@ -39,6 +39,6 @@ RUN tce-load -wic coreutils \
             sudo rm -f /usr/local/tce.installed/$INSTALLED; \
         done \
     && rm -rf /tmp/tce/optional/* \
-    && sudo npm install -g npm@"$NPM_VERSION" \
-    && sudo npm cache clear
+    && sudo npm install -g npm@"$NPM_VERSION"
+WORKDIR /root
 USER root