diff --git a/package.json b/package.json
index faec16a..d9c76c9 100644
--- a/package.json
+++ b/package.json
@@ -61,5 +61,8 @@
   "dependencies": {
     "mappy-breakpoints": "^0.2.3",
     "normalize.css": "^8.0.1"
+  },
+  "jest": {
+    "testEnvironment": "node"
   }
 }
diff --git a/scss.spec.js b/scss.spec.js
index 16860d3..86b1cea 100644
--- a/scss.spec.js
+++ b/scss.spec.js
@@ -1,7 +1,10 @@
 const { runSass } = require('sass-true')
 const { sync } = require('glob');
+const sass =  require('sass');
 
 describe('SCSS', () => {
   const files = sync('scss/**/*.spec.scss')
-  files.forEach(file => runSass({ file }, {describe, it}) )
+  files.forEach(file => {
+    runSass({ file }, { sass, describe, it })
+  })
 })