diff --git a/Gruntfile.js b/Gruntfile.js
index 89ddb8ee..360894ed 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -80,7 +80,8 @@ module.exports = function(grunt) {
         src: ['test/coverage.html'],
         options: {
           reporter: 'node_modules/mocha-lcov-reporter/lib/lcov.js',
-          output: 'build/bundled.lcov'
+          output: 'build/bundled.lcov',
+          silent: true
         }
       }
     }
diff --git a/package.json b/package.json
index 08c4f8b6..c3d45b1b 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "grunt-exorcise": "^1.0.0",
     "grunt-flow-type-check": "^0.4.2",
     "grunt-jscoverage": "^0.1.3",
-    "grunt-mocha-phantomjs": "^0.6.0",
+    "grunt-mocha-phantomjs": ">=0.6.1",
     "grunt-mocha-test": "^0.12.7",
     "lcov-parse": "0.0.9",
     "mocha": "^2.1.0",