diff --git a/package.json b/package.json
index 1ee462b..35bac70 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   "devDependencies": {
     "@mparticle/web-kit-wrapper": "^1.0.5",
     "mocha": "^5.2.0",
-    "chai": "^4.2.0",
+    "chai": "^4.5.0",
     "karma": "^3.1.4",
     "karma-chai": "^0.1.0",
     "karma-chrome-launcher": "^2.2.0",