diff --git a/package.js b/package.js
index 84c18fb..a074468 100644
--- a/package.js
+++ b/package.js
@@ -8,8 +8,8 @@ Package.describe({
 
 Package.onUse(function(api) {
   api.versionsFrom('1.2.1');
-  api.imply('fourseven:scss');
-  api.use(['ecmascript', 'jquery', 'fourseven:scss'], 'client');
+  api.imply('fourseven:scss@3.4.1');
+  api.use(['ecmascript', 'jquery', 'fourseven:scss@3.4.1'], 'client');
   api.addFiles('dist/motion-ui.js', 'client');
   api.addFiles([
     'src/_settings.scss',