diff --git a/packages/commons/package.json b/packages/commons/package.json
index 190e1e033..1d3d3b2c7 100644
--- a/packages/commons/package.json
+++ b/packages/commons/package.json
@@ -56,7 +56,7 @@
     "babel-plugin-transform-object-assign": "^6.1.18",
     "babel-polyfill": "^6.7.4",
     "babel-preset-es2015": "^6.1.18",
-    "chai": "^3.5.0",
+    "chai": "^4.0.0",
     "eslint-if-supported": "^1.0.1",
     "feathers": "^2.0.2",
     "istanbul": "^1.1.0-alpha.1",