what version of Lua does raylib use

Question

When I try to use raylib with lua + zerobrane it says it can't require it , here is the output from zerobrane. would not let me copy output but I think you get the idea. Here is my code which is just for testing . might help

rl = require "raylib.dll"
rl.graphics.initwindow(100,100,200,200)
::ppp::
a = a +1
if a >= 20000 
then a = 1 
end
rl.graphics.print "raylib"
goto ppp