diff --git a/package.json b/package.json
index 9ed0c2e..38ffb7c 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "xml-c14n": "^0.0.6"
   },
   "devDependencies": {
-    "chai": "4.5.0",
+    "chai": "6.2.2",
     "codeclimate-test-reporter": "0.5.1",
     "coveralls": "3.1.0",
     "eslint": "5.16.0",