diff --git a/Dockerfile b/Dockerfile
index cc79125..32adc74 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,11 +10,6 @@ LABEL maintainer="aptalca"
 # environment settings
 ENV HOME="/config"
 
-RUN rm /bin/sh && ln -s /bin/bash /bin/sh
-
-# Set debconf to run non-interactively
-RUN echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
-
 # Install base dependencies
 RUN apt-get update && apt-get install -y -q --no-install-recommends \
         apt-transport-https \
@@ -28,18 +23,32 @@ RUN apt-get update && apt-get install -y -q --no-install-recommends \
         software-properties-common \
     && rm -rf /var/lib/apt/lists/*
 
-ENV NVM_DIR /usr/local/nvm # or ~/.nvm , depending
-ENV NODE_VERSION 0.10.33
+# replace shell with bash so we can source files
+RUN rm /bin/sh && ln -s /bin/bash /bin/sh
 
-# Install nvm with node and npm
-RUN curl https://raw.githubusercontent.com/creationix/nvm/v0.20.0/install.sh | bash \
-    && . $NVM_DIR/nvm.sh \
+# update the repository sources list
+# and install dependencies
+RUN apt-get update \
+    && apt-get install -y curl \
+    && apt-get -y autoclean
+
+# nvm environment variables
+ENV NVM_DIR /usr/local/nvm
+ENV NODE_VERSION 4.4.7
+
+# install nvm
+# https://github.com/creationix/nvm#install-script
+RUN curl --silent -o- https://raw.githubusercontent.com/creationix/nvm/v0.31.2/install.sh | bash
+
+# install node and npm
+RUN source $NVM_DIR/nvm.sh \
     && nvm install $NODE_VERSION \
     && nvm alias default $NODE_VERSION \
     && nvm use default
 
+# add node and npm to path so the commands are available
 ENV NODE_PATH $NVM_DIR/v$NODE_VERSION/lib/node_modules
-ENV PATH      $NVM_DIR/v$NODE_VERSION/bin:$PATH
+ENV PATH $NVM_DIR/versions/node/v$NODE_VERSION/bin:$PATH
 
 RUN apt install nano wget htop zip unzip -y