diff --git a/.install_mongodb_on_travis.sh b/.install_mongodb_on_travis.sh
new file mode 100644
index 00000000..33437624
--- /dev/null
+++ b/.install_mongodb_on_travis.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
+
+if [ "$MONGODB" = "2.4" ]; then
+    echo "deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen" | sudo tee /etc/apt/sources.list.d/mongodb.list
+    sudo apt-get update
+    sudo apt-get install mongodb-10gen=2.4.14
+    # No need for `sudo service mongodb start` because v2.4 starts automatically
+elif [ "$MONGODB" = "2.6" ]; then
+    echo "deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen" | sudo tee /etc/apt/sources.list.d/mongodb.list
+    sudo apt-get install mongodb-org-server=2.6.12
+    sudo service mongodb start
+elif [ "$MONGODB" = "3.0" ]; then
+    echo "deb http://repo.mongodb.org/apt/ubuntu precise/mongodb-org/3.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb.list
+    sudo apt-get install mongodb-org-server=3.0.14
+    sudo service mongodb start
+else
+    echo "Invalid MongoDB version, expected 2.4, 2.6, or 3.0."
+    exit 1
+fi;