diff --git a/package.json b/package.json
index 6b81066..0f971bd 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
     "babel-preset-stage-1": "^6.1.2",
     "babelify": "^7.2.0",
     "browserify": "^12.0.1",
-    "browserify-istanbul": "^0.2.1",
+    "browserify-istanbul": "^2.0.0",
     "chai": "^3.4.1",
     "defined": "^1.0.0",
     "eslint": "^1.8.0",
@@ -52,17 +52,17 @@
     "jsfmt": "^0.5.2",
     "karma": "^0.13.15",
     "karma-beep-reporter": "^0.1.4",
-    "karma-browserify": "^4.4.0",
+    "karma-browserify": "^5.0.0",
     "karma-chrome-launcher": "^0.2.1",
     "karma-coverage": "^0.5.3",
     "karma-firefox-launcher": "^0.1.6",
     "karma-mocha": "^0.2.0",
     "karma-mocha-reporter": "^1.1.1",
     "karma-safari-launcher": "^0.1.1",
-    "karma-sauce-launcher": "^0.3.0",
+    "karma-sauce-launcher": "^1.1.0",
     "karma-tape-reporter": "^1.0.3",
     "minimist": "^1.2.0",
-    "mocha": "^2.3.3",
+    "mocha": "^3.0.0",
     "react": "^15.5.4",
     "react-addons-css-transition-group": "^15.0.0",
     "react-addons-test-utils": "^15.0.0",