diff --git a/.travis.yml b/.travis.yml
index 5a4ed78..7c6f944 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,21 +1,10 @@
 language: node_js
 node_js:
-- "4"
-- "5"
-- "6"
-- "7"
-- "8"
-- "node"
-- "lts/*"
-before_install:
-- npm install -g npm@2
-notifications:
-  hipchat:
-    rooms:
-      secure: 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
-    template:
-    - '<a href="https://travis-ci.org/%{repository}/builds/%{build_id}">%{repository}
-      Build %{build_number}</a> on branch <i>%{branch}</i> by %{author}: <strong>%{message}</strong>
-      <a href="https://github.com/%{repository}/commits/%{commit}">View on GitHub</a>'
-    format: html
-    notify: true
+  - "4"
+  - "5"
+  - "6"
+  - "7"
+  - "8"
+  - "10"
+  - "lts/*"
+  - "node"
diff --git a/Makefile b/Makefile
index db0ed4b..680dff3 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,10 @@
-.PHONY: install test
+.PHONY: clean install test
 
-install:
+clean:
+	@rm -rf node_modules
+
+install: clean
 	npm install
 
-test:
+test: install
 	npm test
diff --git a/package-lock.json b/package-lock.json
index 6c7da96..4255e66 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "sendgrid-rest",
-  "version": "2.4.0",
+  "version": "2.5.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {