diff --git a/Dockerfile b/Dockerfile
index 7aeef1d..80606ea 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,8 +11,8 @@ RUN apt-get -qq update \
     libcairo2-dev \
     libprotobuf-dev \
     xvfb \
-&& echo "deb https://deb.nodesource.com/node_4.x jessie main" >> /etc/apt/sources.list.d/nodejs.list \
-&& echo "deb-src https://deb.nodesource.com/node_4.x jessie main" >> /etc/apt/sources.list.d/nodejs.list \
+&& echo "deb https://deb.nodesource.com/node_6.x jessie main" >> /etc/apt/sources.list.d/nodejs.list \
+&& echo "deb-src https://deb.nodesource.com/node_6.x jessie main" >> /etc/apt/sources.list.d/nodejs.list \
 && apt-get -qq update \
 && DEBIAN_FRONTEND=noninteractive apt-get -y --allow-unauthenticated install \
     nodejs \
diff --git a/Dockerfile_light b/Dockerfile_light
index 9f1f18d..bd4d6b3 100644
--- a/Dockerfile_light
+++ b/Dockerfile_light
@@ -1,4 +1,4 @@
-FROM node:4
+FROM node:6
 MAINTAINER Petr Sloup <petr.sloup@klokantech.com>
 
 RUN mkdir -p /usr/src/app