diff --git a/Makefile b/Makefile
index dce372562b..abc828ca19 100644
--- a/Makefile
+++ b/Makefile
@@ -39,11 +39,15 @@ test-only:
 test: lint test-only
 
 test-cov: clean
-	BABEL_ENV=test; \
-	gulp build
+	# build with test
+	rm -rf packages/*/lib
+	BABEL_ENV=test; gulp build
+
 	./scripts/test-cov.sh
 
-test-ci: lint bootstrap build test-only
+	cat ./coverage/coverage.json | ./node_modules/codecov.io/bin/codecov.io.js
+
+test-ci: lint bootstrap test-cov
 
 publish:
 	git pull --rebase
diff --git a/README.md b/README.md
index d747d2503e..d2e292cbf3 100644
--- a/README.md
+++ b/README.md
@@ -9,12 +9,16 @@
 </p>
 
 <p align="center">
-  <a href="https://travis-ci.org/babel/babel"><img alt="Build Status" src="https://img.shields.io/travis/babel/babel/master.svg?style=flat"></a>
-  <a href="http://badge.fury.io/js/babel-core"><img alt="npm version" src="https://badge.fury.io/js/babel-core.svg"></a>
-  <a href="https://npmjs.org/package/babel-core"><img alt="Downloads" src="http://img.shields.io/npm/dm/babel-core.svg"></a>
+  <a href="https://travis-ci.org/babel/babel"><img alt="Travis Status" src="https://img.shields.io/travis/babel/babel/master.svg?style=flat&label=travis"></a>
+  <a href="https://travis-ci.org/babel/babel"><img alt="CircleCI Status" src="https://img.shields.io/circleci/project/babel/babel/master.svg?style=flat&label=circle"></a>
+
+  <a href="https://codecov.io/github/babel/babel"><img alt="Coverage Status" src="https://img.shields.io/codecov/c/github/babel/babel/master.svg?style=flat"></a>
 </p>
 
 <p align="center">
+  <a href="http://badge.fury.io/js/babel-core"><img alt="npm version" src="https://badge.fury.io/js/babel-core.svg"></a>
+  <a href="https://npmjs.org/package/babel-core"><img alt="Downloads" src="http://img.shields.io/npm/dm/babel-core.svg"></a>
+
   <a href="http://issuestats.com/github/babel/babel"><img alt="Issue Stats" src="http://issuestats.com/github/babel/babel/badge/pr?style=flat"></a>
   <a href="http://issuestats.com/github/babel/babel"><img alt="Issue Stats" src="http://issuestats.com/github/babel/babel/badge/issue?style=flat"></a>
 </p>
diff --git a/circle.yml b/circle.yml
index 64973ea0b9..7e4cf24d74 100644
--- a/circle.yml
+++ b/circle.yml
@@ -1,11 +1,7 @@
 machine:
   node:
     version:
-      0.12.0
-
-dependencies:
-  pre:
-    - make bootstrap
+      0.10.0
 
 test:
   override:
diff --git a/package.json b/package.json
index 4def116861..7d14676c1d 100644
--- a/package.json
+++ b/package.json
@@ -10,6 +10,7 @@
     "bundle-collapser": "^1.2.1",
     "chai": "^2.2.0",
     "chalk": "1.1.1",
+    "codecov.io": "^0.1.6",
     "derequire": "^2.0.2",
     "es5-shim": "^4.1.7",
     "eslint": "1.1.0",