diff --git a/doc/prepare.md b/doc/prepare.md
index 9f285894acaa904ec86e8881064f7bcfe70707e9..bc2d1715458fa363c8c13412b1ccb9bb358d1fc1 100644
--- a/doc/prepare.md
+++ b/doc/prepare.md
@@ -64,7 +64,7 @@ sudo apt-get install software-properties-common python-software-properties
 # This PPA contains an up-to-date version of Go
 sudo apt-add-repository -y ppa:ubuntu-lxc/lxd-stable
 sudo apt-get update
-sudo apt-get install git postgresql postgresql-contrib libpq-dev redis-server libicu-dev cmake g++ nodejs libkrb5-dev golang ed pkg-config
+sudo apt-get install git postgresql postgresql-contrib libpq-dev redis-server libicu-dev cmake g++ nodejs npm libkrb5-dev golang ed pkg-config
 npm install phantomjs-prebuilt@2.1.12 -g
 ```
 
@@ -82,7 +82,7 @@ npm install phantomjs-prebuilt@2.1.12 -g
 Please read [the prerequisites for all platforms](#prerequisites-for-all-platforms).
 
 ```
-sudo apt-get install postgresql postgresql-contrib libpq-dev redis-server libicu-dev cmake g++ nodejs libkrb5-dev ed pkg-config
+sudo apt-get install postgresql postgresql-contrib libpq-dev redis-server libicu-dev cmake g++ nodejs npm libkrb5-dev ed pkg-config
 ```
 
 If you are running Debian Stretch or newer you will need to install Go
@@ -107,7 +107,7 @@ You may need to install Redis 2.8 or newer manually.
 We assume you are using Fedora >= 22.
 
 ```
-sudo dnf install postgresql libpqxx-devel postgresql-libs redis libicu-devel nodejs git ed cmake rpm-build gcc-c++ krb5-devel go postgresql-server postgresql-contrib
+sudo dnf install postgresql libpqxx-devel postgresql-libs redis libicu-devel nodejs npm git ed cmake rpm-build gcc-c++ krb5-devel go postgresql-server postgresql-contrib
 ```
 
 Install `phantomJS` manually, or download it and put in your $PATH. For
@@ -124,7 +124,7 @@ This is tested on CentOS 6.5:
 ```
 sudo yum install http://yum.postgresql.org/9.3/redhat/rhel-6-x86_64/pgdg-redhat93-9.3-1.noarch.rpm
 sudo yum install https://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
-sudo yum install postgresql93-server libicu-devel cmake gcc-c++ redis ed fontconfig freetype libfreetype.so.6 libfontconfig.so.1 libstdc++.so.6 golang nodejs
+sudo yum install postgresql93-server libicu-devel cmake gcc-c++ redis ed fontconfig freetype libfreetype.so.6 libfontconfig.so.1 libstdc++.so.6 golang nodejs npm
 
 sudo rvm install 2.3
 sudo rvm use 2.3
@@ -149,7 +149,7 @@ Please read [the prerequisites for all platforms](#prerequisites-for-all-platfor
 
 ```
 sudo pkg install postgresql93-server postgresql93-contrib postgresql-libpqxx \
-redis go node icu krb5 phantomjs gmake
+redis go node npm icu krb5 phantomjs gmake
 ```
 
 ### Other platforms