Error in OpenShift: "phantomjs-node: You don't have 'phantomjs' installed"

I successfully created a script using phantomjs-node in local and I would like to host in on OpenShift.

The thing is when I started my script hosted, I had this strange error:

phantom stderr: execvp(): No such file or directory phantomjs-node: You don't have 'phantomjs' installed

But as you can see, I put the dependancies in the package.json file:

"dependencies": {
  "express": "~3.4.4",
  "phantom": "*",
  "phantomjs": "*"
},

Any suggestions?