diff --git a/Dockerfile b/Dockerfile
index 1953048..7be71d0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -41,9 +41,9 @@ RUN apt-get -qq update && apt-get -qq install -y unzip xorg wget curl && \
     rm -rf /mcr-install
 
 # bids validator in js
-RUN curl -sL https://deb.nodesource.com/setup_4.x | sudo -E bash -
+RUN curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -
 RUN sudo apt-get -y install nodejs 
-RUN npm install -g bids-validator
+RUN npm install -g bids-validator@0.21.2
 
 RUN mkdir -p /code
 RUN mkdir /oppni