diff --git a/docs/source/install/rhel7.rst b/docs/source/install/rhel7.rst
index ec24a0349..a5ff31f5d 100644
--- a/docs/source/install/rhel7.rst
+++ b/docs/source/install/rhel7.rst
@@ -56,15 +56,15 @@ Install MongoDB, RabbitMQ, and PostgreSQL:
 
   sudo yum -y install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
 
-  # Add key and repo for the latest stable MongoDB (3.4)
-  sudo rpm --import https://www.mongodb.org/static/pgp/server-3.4.asc
-  sudo sh -c "cat <<EOT > /etc/yum.repos.d/mongodb-org-3.4.repo
-  [mongodb-org-3.4]
+  # Add key and repo for the latest stable MongoDB (4.0)
+  sudo rpm --import https://www.mongodb.org/static/pgp/server-4.0.asc
+  sudo sh -c "cat <<EOT > /etc/yum.repos.d/mongodb-org-4.repo
+  [mongodb-org-4]
   name=MongoDB Repository
-  baseurl=https://repo.mongodb.org/yum/redhat/7/mongodb-org/3.4/x86_64/
+  baseurl=https://repo.mongodb.org/yum/redhat/7/mongodb-org/4.0/x86_64/
   gpgcheck=1
   enabled=1
-  gpgkey=https://www.mongodb.org/static/pgp/server-3.4.asc
+  gpgkey=https://www.mongodb.org/static/pgp/server-4.0.asc
   EOT"
 
   sudo yum -y install crudini
diff --git a/docs/source/install/u16.rst b/docs/source/install/u16.rst
index 4f66a5c42..47b54c16b 100644
--- a/docs/source/install/u16.rst
+++ b/docs/source/install/u16.rst
@@ -27,10 +27,10 @@ Install MongoDB, RabbitMQ, and PostgreSQL:
   sudo apt-get install -y gnupg-curl
   sudo apt-get install -y curl
 
-  # Add key and repo for the latest stable MongoDB (3.4)
-  wget -qO - https://www.mongodb.org/static/pgp/server-3.4.asc | sudo apt-key add -
-  sudo sh -c "cat <<EOT > /etc/apt/sources.list.d/mongodb-org-3.4.list
-  deb http://repo.mongodb.org/apt/ubuntu $(lsb_release -c | awk '{print $2}')/mongodb-org/3.4 multiverse
+  # Add key and repo for the latest stable MongoDB (4.0)
+  wget -qO - https://www.mongodb.org/static/pgp/server-4.0.asc | sudo apt-key add -
+  sudo sh -c "cat <<EOT > /etc/apt/sources.list.d/mongodb-org-4.0.list
+  deb http://repo.mongodb.org/apt/ubuntu $(lsb_release -c | awk '{print $2}')/mongodb-org/4.0  multiverse
   EOT"
   sudo apt-get update