diff --git a/README.md b/README.md
index 898fb02..c04bd4a 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # dokku mongo (beta) [![Build Status](https://img.shields.io/travis/dokku/dokku-mongo.svg?branch=master "Build Status")](https://travis-ci.org/dokku/dokku-mongo) [![IRC Network](https://img.shields.io/badge/irc-freenode-blue.svg "IRC Freenode")](https://webchat.freenode.net/?channels=dokku)
 
-Official mongo plugin for dokku. Currently installs [mongo 3.1.7](https://hub.docker.com/_/mongo/).
+Official mongo plugin for dokku. Currently installs [mongo 3.0.6](https://hub.docker.com/_/mongo/).
 
 ## requirements
 
diff --git a/config b/config
index da1b07e..746a975 100644
--- a/config
+++ b/config
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 export MONGO_IMAGE=${MONGO_IMAGE:="mongo"}
-export MONGO_IMAGE_VERSION=${MONGO_IMAGE_VERSION:="3.1.7"}
+export MONGO_IMAGE_VERSION=${MONGO_IMAGE_VERSION:="3.0.6"}
 export MONGO_ROOT=/var/lib/dokku/services/mongo
 
 export PLUGIN_COMMAND_PREFIX="mongo"
diff --git a/tests/bin/docker b/tests/bin/docker
index 95ca40b..a07ac5b 100755
--- a/tests/bin/docker
+++ b/tests/bin/docker
@@ -34,7 +34,7 @@ case "$1" in
       echo "ef27fec191ba        memcached:1.4.24           \"/entrypoint.sh memc   11 seconds ago       Up 10 seconds       11211/tcp                        dokku.memcached.l"
       echo "94df08fe5550        mariadb:10.0.21            \"/docker-entrypoint.   11 seconds ago       Up 10 seconds       3306/tcp                         dokku.mariadb.l"
       echo "ef27fec191ba        memcached:1.4.24           \"/entrypoint.sh memc   11 seconds ago       Up 10 seconds       11211/tcp                        dokku.memcached.l"
-      echo "c0f74fc90377        mongo:3.1.7                \"/entrypoint.sh mong   11 seconds ago       Up 10 seconds       27017/tcp                        dokku.mongo.l"
+      echo "c0f74fc90377        mongo:3.0.6                \"/entrypoint.sh mong   11 seconds ago       Up 10 seconds       27017/tcp                        dokku.mongo.l"
       echo "0f33b1c86da9        mysql:5.7.8                \"/entrypoint.sh mysq   11 seconds ago       Up 10 seconds       3306/tcp                         dokku.mysql.l"
       echo "7f899b723c08        postgres:9.5               \"/docker-entrypoint.   11 seconds ago       Up 10 seconds       5432/tcp                         dokku.postgres.l"
       echo "5e50a462661e        rabbitmq:3.5.4-management  \"/docker-entrypoint.   11 seconds ago       Up 10 seconds       5672/tcp, 15672/tcp              dokku.rabbitmq.l"
@@ -68,7 +68,7 @@ case "$1" in
     echo "elasticsearch             1.7.1               89ed89918502        9 days ago          522.1 MB"
     echo "mariadb                   10.0.21             f2485761e714        11 days ago         302.2 MB"
     echo "memcached                 1.4.24              8a05b51f8876        13 days ago         132.4 MB"
-    echo "mongo                     3.1.7               12eadb136159        13 days ago         291.1 MB"
+    echo "mongo                     3.0.6               12eadb136159        13 days ago         291.1 MB"
     echo "mysql                     5.7.8               57d56ac47bed        13 days ago         321.3 MB"
     echo "postgres                  9.5                 6412eb70175e        11 days ago         265.7 MB"
     echo "rabbitmq                  3.5.4-management    327b803301e9        13 days ago         143.5 MB"