diff --git a/src/babel/api/register/node.js b/src/babel/api/register/node.js
index 20bbff87aa..f2c044af0c 100644
--- a/src/babel/api/register/node.js
+++ b/src/babel/api/register/node.js
@@ -46,7 +46,7 @@ var compile = function (filename) {
   var opts = extend({}, transformOpts);
   resolveRc(filename, opts);
 
-  var cacheKey = `${filename}:${JSON.stringify(opts)}`;
+  var cacheKey = `${filename}:${JSON.stringify(opts)}:${babel.version}`;
 
   if (cache) {
     var cached = cache[cacheKey];