diff --git a/.travis.yml b/.travis.yml
index 7192c32..5b20046 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-- '8'
+- '12'
 sudo: false
 branches:
   except:
diff --git a/package.json b/package.json
index c9d7a24..c9e28e7 100644
--- a/package.json
+++ b/package.json
@@ -58,6 +58,7 @@
     "update": true
   },
   "devDependencies": {
-    "eslint": "4.0.0 - 4.19.1"
+    "eslint": "4.0.0 - 4.19.1",
+    "nodeunit": "^0.11.3"
   }
 }